Pilot jet cutoff valve: 3: Carburetor upper half: 15: Gasket: 27: Circlip: 4: Float needle valve: 16: Now unscrew it exactly 2-1/2 turns. The main jet provides fuel from about 1500 rpm right up to maximum rpm. Make sure the old one you took out stays in good shape so it can be reused. Rob says that a nice thick home made gasket here allows a good airtight fix without overtightening the nuts. If you can't find one at about 125-130Z, try a smaller one, say 110Z. With the idle cut-off valve working correctly, hot spots in the cylinders don't occur as readily, since there is no fuel available to keep the engine running once you turn off the ignition. All information should be verified prior to use. If the engine is stumbling at 2000 RPMs and lower, then you need to richen up your idle jet (go to a larger size) - but check carefully for air leaks around the throttle shaft first!. Where the early style carburettor has the idle cut-off solenoid on the RIGHT side of the carburettor, that solenoid sits in the back of the idle jet. SOLEX 34 PICT 3 Carburetor Adjustment Procedures. With the richer 125Z air correction jet I got 11.8 km/l (27.9mpg) -- no real difference. If the idle RPM peaks at 2-3 1/2 turns out, you're OK. I remove the top of the carburetor, then run a thin screw driver (which avoids the coil) through the plug hole to get to the jet. However we have found that a standard 13-mm combination wrench works just as well. The power jet only works at higher throttle positions and higher rpms. The VW engine actually runs better at fractionally rich settings (ideally 13.8:1 rather than 14.5:1 according to Bob Hoover). Venturi Size. What you are mainly looking for is the condition of the carburetor. The jets in Dave's 34 PICT/3 carburetor are - Main jet - X130; Idle jet - 55; Air correction jet - 80Z ~~~ Jetting With the Centrifugal-Advance 009 Distributor, The 009 centrifugal-advance distributor can not sense throttle position engine load, only engine revolutions, so it's not ideal in all circumstances, Changing the jetting in . Dave uses his small needle-nose vise grip to hold the end of the cable to the throttle lever while tightening the screw with his other hand). . Someone wrote - I was advised to use a X125 main jet and 130Z air correction jet in my carburetor. All three of these jets can be changed. On the H30/31 carburetor, there are two brass jets on the right side (right is right of car). Special Instructions The X127.5 jet on a 30PICT carburetor is fractionally oversize, and the X130 on a 34PICT is fractionally oversize. ), Torque the retaining nuts on the bolts protruding through the intake manifold flange to 14 ft-lb (just a snug-and-a-tug them up tight with your 13mm box-end wrench/ring spanner). The VW 105-1 Air Correction Jet would be 125z. December 20th, 2019 - Peugeot 205 User Manual Solex 32 34 Z2 carburettors 28 4c Idle speed adjusting screw location 1 on the Weber 32 The emulsion tube mixes air from the air corrector jet with fuel from the main jet, and controls the mixture from the discharge nozzle at all engine speeds that the main jet is working. Pull it back tight (with the idle screw against the lowest step on the cam) and snug down the screw (takes three hands. Take the car for a run at a modest speed - say 35-40mph. Carburetor Reassembly A 44 IDF would need a 55 idle jet, and a 48 IDF would need a 60 idle jet. Some of the replacement carburetors (H30/31 and 30PICT/3 maybe???) This will richen the mixture and help eliminate any 009 flat spots. Run about 100 miles and then look at the tail pipe. Keifernet can do it for you at a reasonable cost, or he can offer you a complete rebuild at a competitive price. The idle jet is normally a little larger when used with the heavy bodied Type 2 and Karmann Ghias - in a Bug you usually use a 55, for a Type 2 or Karmann Ghia use a 60 or 65this gives you a little more power at low and medium speeds. The stock carb has a 26mm venturi. to the back of the engine, in an angle) is a: g f 50 and the other: g f 50. JET KITS are available if needed. I find it much easier to just use a regular 13mm box-end wrench (ring sopanner), as getting the S-wrench on and off of the nut is very difficult (walls on the box (ring) end are too thick). And fuels! The performance would tell you some of the answer, but inexperienced folks using one might get themselves into trouble where using a fixed (normal) jet and changing it for a larger or smaller one would give you a known change in fuel flow. Fillister head screw and lock washer (upper The EMPI Brosol and Solex Replacement Main Jets are sold individually in sizes ranging from 112.5 to 170. Please only continue if you are prepared to be PATIENT. I'd avoid Chinese stuff on eBay. If it takes 4 1/2 to 6 turns to peak, go up a size or (1/2 size if you. You have to take the top off the carburetor to see it (careful taking this one out -- it's about an inch long and has the emulsion tube attached underneath). Use stock vacuum line from air-intake #4 for CDI control unit. If that's the case you need to make sure the idle cut-off solenoid is working (a nice click when you touch the wire on the connector) and that the idle jet (which it screws into) is not blocked. So, I let it warm up, and set the timing to 32 degrees full advance. all make a difference in how our old engines run, so you might need to experiment a little. NOT EVERYONE WANTS DUAL CARBS! Normally, for stock daily-driver Bugs, you will find that an idle jet size of 55-60 is right for you. For a 1600 KG with 34PICT/3 and vacuum distributor, I'd suggest a 60 or 65 idle jet (a 55 idle jet is used for the bug but the heavy bodied KGs and buses used larger idle jets), 127.5 main, 80 or 100 air correction jet (80 makes it run a little richer in the mid range) and a 65 power jet. Rob replaced the air correction jet with a 140Z, and at low-middle speeds there is no discernible effect. Discussion in 'Mech Tech' started by low_light_craig, Jun 9, 2017. Note: Dave found that none of the gaskets in his kit fit his carburetor. To compensate for this, an air correction jet is inserted in the fuel delivery circuit after the main jet, which starts to add air to the fuel emulsion as the airflow increases. Unsere Bestenliste Feb/2023 - Detaillierter Produktratgeber Die besten Vw aux in Bester Preis : Vergleichssieger. Note: You will be removing a number of small parts in this process; hopefully "stow them in a safe place" goes without saying. I've been running my '68 Bug with the X127.5 main jet in the smaller carburetor, and he's running a tad rich. Air correction 75 to 125 and these are changed. For example, a 40 IDF would need a 40 x 1.25 = 50 idle jet. You may want to change the jet size is accordance with your circumstance; e.g., smaller jet size at high altitude (X125 at 4000 ft.). Be careful that you don't tighten these nuts too much -- you may strip the stud out of the base of the carburetor. At the beginning I started to use a Solex 30 PICT-2. We can only give a guide here, as engine age, type of fuel, carburetor wear, etc. On the /3 and /4 carburetors - it looks like a bolt with a tiny silver plug in the center. Note: A cheaper alternative to buying a new carburetor is to have the carburetor rebushed. When you work out the area of the hole in each jet, the steps are roughly 2% increase in fuel flow for each size up (X125 to X127.5 for example). You may have to get creative about how you attach so many wires to the single terminal on the coil. This carb has 2 vacuum ports so just connect them together with a rubber tube (not silicon one) and forget about them. The larger 34PICT carburetor should have the larger X127.5 main jet, and since the larger 34PICT carburetor doesn't have the extreme airflow with a 1600cc DP engine that the 30PICT carburetor does, the over-rich problem is reduced, so you use a SMALLER air correction jet - less correction is needed. 2-F7 emulsion tubes for the IDF. Unscrew this bolt and look at it -- if there is a jet screwed into the bolt (older models), you can deal with it in hand, so to speak. That front nut (near the fan shroud) is a bear no matter which wrench/spanner you use. To summarize: idle jets operate from idle to 2500-3000rpms or so. If not, I find that "canned air" (like Ultra Jet or similar) works pretty well. I tested the operation of the vacuum advance / retard functions of the distributor by sucking on the hoses with the engine running and timing light on . Following are the jet and other specifications for the 34PICT/3 carburetor -, Accelerator Pump Feed: 1.3 - 1.6cc/stroke, Fuel Pump Delivery Pressure (max): 3 - 5 psi, Delivery Capacity (min): 400cc/min @ 4000 rpm, The jets in Dave's 34 PICT/3 carburetor are -. If it's working, you'll hear a clicking sound as the relay pulls in. Also check that the valve hasn't worked loose in the carburetor -- they do sometimes, and then work only intermittently. I've never had to do this so don't even know if it would work well. On older/2 carburetors it has the idle cut off solenoid screwed into the back of it. Home . Unscrew the idle jet from the carburetor and the cut-off solenoid, and blow through it. Basically, the emulsion tube changes the diameter and location of small holes in it's body. This gasket sets the fuel height in the float bowl; erratic behavior may result if the gasket is not correct. When used with the heavy bodied Type 2 vehicle and a vacuum distributor, it should work well with a 60 or 65 idle jet, 125 (or just maybe 127.5) main jet and a 125 air correction jet. None of these tests are definitive - just indicative. The 30PICT/3 and the H30/31 carburetors came with size X112 main (super lean), size 65 idle, and size 125Z air correction jets, which made them very difficult to tune. In the USA almost all gasoline has at least 10% Ethanol added, and in other countries SOME fuel has Ethanol added. The main jet is accessed by removing the big brass bolt on the left side of the PICT carburetor, right at the bottom of the carburetor bowl. 55 idle is fine. Some of you may be using this Carburetor. The adjustable jet would work with any of the Solex carburetors which have the jet mounted horizontally inside the carburetor. The air correction jet is also changeable. Same with the carburetors in general, so adjustments become essential. Carburetor Cleaning Sent from my SM-G930F using Tapatalk You might want to drop a pilot jet size. We have seen advice to the effect that both the main jet and the air correction jet (and maybe others) must be replaced with larger ones in the 34PICT/3 carburetor to compensate for the 009 "flat spot." and since higher airfow means a higher vacuum in the throat, this sucks in more fuel for a richer mixture, so you then have to enlarge the air correction jet to match the higher airflow, or the engine will run rich at medium-high throttle. 60 day return. A clean plug with a light grey/tan look means the mixture is about right. That's fine for modern cars with engine computers which can adjust the mixture on-the-run, but what about our old fixed-jet carburettors? Be careful pulling it out -- it's about an inch long. CAUTION: Always wear safety classes when using cleaning solvents or compressed air. 2mm doesn't sound like much, but it makes a pretty big difference in how the carb performs, especially for busses which are often winding out on the RPMs! ; Replace Part Number: 98-1289-B, 113129031K.Dual Port Manifold only, Not for single port. Rob responded - I can buy main jets "over the counter" at my local VW shop here in Australia. (Solex jets are marked with the hole size in mm, so a X127.5 jet has a 1.275mm hole - I'm not sure what numbering method Mikuni use). That means that the jetting requirement for any VW using ethanol-added gasoline/petrol is different to those using straight hydrocarbon gasoline/petrol. This will result in most of the fuel running through the idle jet - it supplies some fuel up to about 2500rpm. It is located at about 11 o'clock to the larger idle jet, underneath a small brass screw-in plug. Email care allows us to provide important service detail that can be later referenced by both the customer and our care staff. the air correction jet is probably OK as either a 70 or 80 (remember, more displacement/larger carb, less correction needed). The 205L number is a Bosch number, the other one is a VW number. Bentley (page 20 of the 'fuel' section -- table of 'carburetor setting and jets') says the X130 was normal for '71-'72 34PICTs, and X127.5 was normal for '73-'74s (non-California models). Venturi size refers to the narrowest channel in the carburetor throat. PRODUCT IMAGES are representative only. See the discussion of jetting with the 009 distributor below for needed revisions to the jetting of the 34 PICT/3 carburetor in this application. The H30/31 is the largest carburetor you can use with the normal single-port manifold. Every engine is different, so strongly consider getting our micro sized idle jets to really dial it in. Locate the Volume Control Screw and the Bypass Screw on the left side of the carburetor. Another well respected and active VW carburettor rebuilder is TIM. 3. Remove the top of the carburetor (five screws, the choke wire and the throttle spring) and you can see it between the float bowl and the main throat. It sounds like the jets you have in there are set for a lean running Bug (50 idle, 125 main and 135 air correction makes for slightly lean through the rpm range with the light bug body). The idle cut-off valve sticks out the left side of the carburetor on H30/31 and 34 sries carbs (but on the right side on 30PICT series) and has an electrical connector on the end. You can email to cancel un-shipped/un-paid items at any time as long as they are not direct-shipped, special order or made/machined-to-order. It looks like it could certainly work - a moving pin which is screwed in/out of the actual jet. We rely heavily on email as the most efficient and accurate way to serve our customers. Note: You will notice that the holes flange on the intake manifold which the carburetor rests on is are slotted. Aircooled.Net, Inc. is in no way affiliated or associated with Volkswagen AG or Volkswagen ("VW") of America. The /4 version was used in California and had additional features to reduce emissions. = Uses .0 Bypass: WEBER 34 ICT: Factory Sizes: Single Carb: Dual Carbs: AIR CORRECTION 1.60 N/A 1.60 EMULSION TUBE F-78 N/A MAIN . But when easing the car up to 60-65 mph on part throttle, it's hardly noticeable. Dave bought a Pierburg model 34PICT/3 carburetor from Aircooled.Net, and none of the jets had the sizes stamped on them. The carburetor idle circuit controls how much fuel you have at idle. (See our Automatic Choke Discussion and Adjustment Procedure.). Turn the Bypass Screw (the larger one) out a couple of turns, to get things started. Rebuild. I also have a stock carb rack but it appears to have water damage and one or more carb is seized. Rob's note regarding modern fuels: There are two major issues with modern fuels. 1975 GL1000 Restored (sold) 1983 GL1100 Custom (sold . If it is any lower the choke may be staying on too long, or it may be stuck on and won't open at all. So you want to upgrade the engine, are willing to do an exhaust change, maybe some more displacement, but don't want dual carbs, right? Delivery: Estimated between Mon, 6 Mar and Wed, 15 Mar to 23917. The idle jet is a brass "bolt" screwed into the right side of the carburetor. If you install a single carb on GL (34/3 PICT) always keep in mind the following: 1. This is what causes the visible rich condition, and confirms the need to increase the jet size. The condenser is 1 237 330 251. mains: 120, 130, 135, 145. air jets: 160, 170, 180, 185. If you live at altitudes above 5000 feet, you also have to consider that, as high altitude results in the engine running rich (less oxygen in the air but the same fuel flow through the carburetor). Details. The center electrode should look quite clean and grey/white. (See the discussion of the air correction jet above.). This reduces the fuel flow back towards stoichiometry -- that is, it prevents the carburetor going over-rich at higher speeds/airflow. If the color of the deposit is tan or brown, you are running too lean and the main jet size should be increased. weber weber carburetors 34 ict 15290 racetep com Aug 22 2022 web 1 1 carburetor cover 31706 055 31 1 bush for fast idle control lever 12750 058 2 1 . The power jet is usually a size 65. Solex Carb Spacer for Alternator, 30 PICT Carburetors, 00-3245- The 137.5Z air correction jet is too big -- it's letting in too much air. Just start off with a larger than normal size (150 maybe) and use the screw to increase/decrease the actual hole size. Size 24 MB File Type PDF File Get free Mikuni Solex Service Manual Solex . It worked quite well, although the idle wasn't very accurate. See details. $7.99. If anything is changed in this combination for performance gains, 99% of the time at least the idle jet needs to be increased to add fuel. Then tighten further according to the chart. There are three (or four) removable jets. If you try removing the idle shut-off valve and the air correction jet (the brass bolt head in between the float bowl and the main throat) and the idle jet itself, and then blast air through the passages in both directions, that might get it. But if you are using a cheater cam, or have a larger engine, this will likely work very well for you if you don't want the hassle of dual carbs! If I can't iron it out with the high speed jet I'll start on the idle jet. Disconnect the electrical lead from the valve, then touch it to the connector again. It would be interesting to try using one an adjustable main jet, but there are some dangers too ? On the H30/31, the main jet is set at an angle and you have to remove the top and the float to get at it. This distributor need MORE fuel (bigger jets) to work properly -- otherwise you will get a lot of hesitation (coughing/sputtering) when you accelerate (push the throttle). Accelerator pump diaphragm (24) A Automatic 737-240. I have a 52.5 idle jet in it, so it took about 4 1/2 turns to get max rpm ( thru a tach on my timing light). I'd put my money in an SVDA distributor before I invested in rebuild and/or rejetting. CAUTION: much has changed in recent years. Look down into the top of the carburetor to make sure that the screwdriver is squarely in the slot in the jet and that the threads line up squarely, then just screw it in (the small screw driver sits deep in the slot in the jet and helps line it up). As these plates restrict air flow, there is less vacuum to . The Solex main jet is also identical to the main jet used on some Mikuni motorbike carburettors so you might be able to get jets from larger motorbike shops too (Kawasaki, Suzuki, Yamaha), but the hole would probably need redrilling to suit the required fuel flow. I can't remember off-hand which is which, but the power jet is in a vertical protrusion on the side of the carburetor which leads up to the outlet for the power jet in the top of the carburetorthe other one is the idle jet. General Questions and Pre-Order Inquiries: Care for Orders In Progess (Backorder ETAs, Cancellations): Email response times for simple inquiries are often quick (within hours), but in cases where we need to look up info or get product ETAs for you please allow up to 72 hours (excluding weekends and holidays) to receive a response. Then video is intended as an example.. I have lowered the fuel pressure down to 2.5 psi and checked the float bowl fuel height. Solex 30 PICT-3, 34 PICT-3 and 34 PICT-4, remove the air bypass screw. Nothing is exactly that linear of course as the jets are all different sizes, but maybe it helps visualise the problem of keeping the fuel flow balanced at different rpm/airflows. As a result, we have had to change our BACKORDER FULFILLMENT PROCEDURES. If the problem occurs at higher RPM (2500-4000), then you need to richen up your main jet. The only method of getting it exact is to run the car on a dynomometer with an exhaust gas analyser in the exhaust pipe. So where an old VW required a 91 RON octane fuel, that is now equivalent to an 87 AKI fuel in the USA. 34 PICT Carburetor Combination, Automatic Choke Discussion and Adjustment Procedure. See our Carburetor Overhaul Procedure. These carburetors come jetted "generally", and will bolt on and run. 34 PICT Carburetor Combination. Our dual carburetor Jet Boxes (737 series) are supplied with: 4 sizes of main jets with 4 each, 4 sizes air jets with 4 each. This jet is critical to engine flexibility and economy. SUPER-STOCK-34-3. Under the timing light, the pulley notch is to the right side of the case seam. Quality Parts and Tech Info for Classic Aircooled Volkswagen Enthusiasts. Main jet sizes run through a range from X110 to X150 (1.1 - 1.5mm diameter). Using a new gasket, install the carburetor on the intake manifold flange. The larger size 65 idle jet helped the 30PICT/3 and H30/31 carburetors overcome the very lean main jet at idle and low speeds, and thus help to reduce the "bogging" problem. Seller pays for return postage. See our. If you don't have a compressor, talk to Santa Claus! The venturi sizes listed below are the sizes supplied by Weber in new carburetors. Single 40/44/45mm carburetor, venturi range 28-32mm, Typical displacement of up to 1900cc. The effect is not linear though, so as the airspeed increases, the main jet will start to deliver a richer mixture (too much fuel), so the air correction jet is needed to add air and stop the mixture going over-rich, then the air correction jet starts working too well at higher airflows (engine revs) so the Power Jet (Aux jet) is need to add more fuel again. the chart. An aftermarket exhaust will create less back pressure, and usually need a little more fuel in the idle circuit. Great for that SLEEPER LOOK! Our last contact with Keith was some years ago. Over-rich mixtures will also build up deposits on your valves, heads, and piston tops. There should be a light smooth coating of carbon on the rim of the threaded part, and a colour change on the outer electrode of grey (at the tip) to black (where it attaches to the rim of the threaded part), with the change of colour on the corner of the bend. Regarding fuel consumption as a function of jet size -- The 1600cc Beetle should get about 10-12km/l (24-28mpg). The biggest problem I have with it was the fuel consumption. *** Supply-chain disruptions have hampered our ability to acquire/restock items reliably, and a lack of backorder ETA information is the frustrating "new normal" for our hobby. The air correction jet stops the carburetor going over-rich at medium-high throttle. vegas Aircooled.Net has them, and I think Gene Berg in the US has them too. Replacing the main jet in is super easy -- just put it in the hole in the side of the carburetor, then put the screw driver in after it and slide it along the 'valley' that runs across the bottom of the float bowl. 2. Since Aircooled.Net has no control over product installation, we will not be held liable for any consequential costs or damages associated with products purchased. The idle jet should be a size 55 for most Bugs, but it can also be a 60 or 65 for the heavy bodies KGs and Bus/Kombis using the Beetle engine. While it is necessary to enrichen the fuel mixture when running an 009 distributor, you don't want the any richer than necessary since it will use more fuel. Do you know what size high speed jet you have? The timing is set ATDC. To explain, the main jet supplies the fuel, and it supplies too much as the rpms increase (a function of the increasing vacuum in the main venturi). The effect is clearly noticeable from 3000 RPM upwards (just under 60 mph), and probably a little lower than that. Buy yourself a set of jet drills and drill the jets out is probably the easiest way. The following topics are discussed in this article -. If it seems a little rich at higher speeds (plugs sooty after a plug read) then try the 130Z air correction jet. We did a run of these, but due to a limited supply of the quality Bocar 34-3 carbs, we do not know how long we'll have these carburetors! Location: Miami. Once again, try the conservative approach first, then get richer only if you have to. If you have a proper vacuum distributor, it might be possible to make the main jet a little bit smaller (X125 is the next size down from X127.5), but this will not make very much difference in the fuel consumption. For a 1776cc engine with 009 distributor, 55 idle, X132.5 or X135 main, and air correct around 80Z should be close to the mark. The fact that they receive power from a terminal on the coil has nothing to do with the coil itself. We need to do some research regarding the adjustable main jet. Make your product selections based on the PRODUCT DESCRIPTION and OPTION INFORMATION presented in the detailed product listing. The air correction jet starts leaning the mixture to bring it back into balance, but as the rpms (airflow) rises to near the maximum for that carburettor, the air correction jet works too well, running the engine lean. But engine sizes have much more variation, 1200cc to 1300cc is about 8% more, 1300cc to 1500cc is nearly 14% more, and 1500cc to 1600cc is about 7% more. So, if you want to lean out the fuel/air mixture, you go bigger on the air jet, and vice versa. Setting the idle screws (B): Tighten the screw until it touches the carburetor lever. Please do NOT rely on PHOTOS while shopping as many of our products have selectable product options that may change the nature of the product being ordered compared to the representative photo. If you have a significantly larger idle jet (e.g., 70 or so), John Connolly recommends going down until you can not get a good engine response with the mixture screws anymore. Dave replaced the main, idle and air correction jets so he knew what he had. Note: The air correction jet size is very important when using a smaller carburetor on a larger engine (e.g., a 30PICT on a 1600cc DP engine). Product Description. The extra advance helps reduce the 009 flat spot just a little. There also is an EMPI replacement 30 Pict-1 with the Pilot Jet . I managed only 22 mpg on a highway (around 50-55 mph), and 19 mpg when I was driving around 60-65 mph. We provide the classic VW hobby with tech tips, project advice, and quality parts for VW Restoration, VW Performance and Custom Aircooled VW projects. Peugeot 205 Manual . Main jets are primarily from 2500-4500rpms, and Air jets affect the engine from 3500/4000 on up. . It is still UNCERTAIN, but we may re-open a substantially downsized version of our store again in the Spring of 2023. There is also a 65 power jet there too) a X127.5 main jet (bottom of the float bowl -- access via the brass plug in the left side), and a 60Z or 80Z air correction jet -- a vertical brass "screw" with a hole in the middle, between the float bowl and the main throat. Our site uses advanced code and encryption that is not supported by Microsoft's Internet Explorer Browser. Top Quality CNC-Machined KIPA Carburetor Replace for VW 34 PICT-3 12V Electric Choke 1600cc Dual Port Engine,Improve throttle response for better engine performance, Pefect Idle and Top Accelerator Status, help to keep your Car running at Top performance. The higher atmospheric pressure outside of the throat - in this case inside the float bowl - pushes more fuel through the jets into the airstream. When using the 30PICT or H30/31 carburetor on a twin port manifold and any vacuum distributor, change the jets to X125 or X127.5 main, 55 idle, and leave the air correction . SKU: 43-5040-7. IDLE JET .55 .65 .60 (d) VENTURII 40mm . Then if you need a fatter idle go up to 57.5, then 60. Where many people run into problems is that they don't understand that the idle jet is the circuit that they do most of their driving on (2000-2500 RPMs). That's how I got mine! But optimum performance and MPG will be achieved when you use a wide band and tune the carb for 16:1 A/F on cruise, and 13:1 over 1/2 throttle. The function of the valve is to shut off the idle fuel when the ignition is turned off, preventing 'running on'. I rebuilt the carb that was on it, as well as a. swap-meet spare, before installing the engine this spring. Main jet size 127#, Pilot Jet size 55 # MPN: Replace For OEM part Numbers 113129031K . The smaller jets WILL NOT work with the 009 distributor. All the plugs look the same -- black and fluffy, telling me a rich condition. Re: 34 PICT 3 Adjustment Woes. Carburetor body-to-cover gasket (6) Leaks would certainly be an issue - I don't know how the threaded part would be sealed. Carbs help Solex 32 34 Z2 Overclockers UK Forums. So a 34PICT/3 carburetor with an 009 distributor should be jetted with an X130 or X132.5 main jet, and an 80-100Z air correction. The 34PICT normally has a X127.5 main and a 140Z or 170 air correction jet. The air correction jet doesn't affect idling very much since it helps control the mixture at higher rpms, but worth a look to see if you have a fuel blockage problem in the carburetor. Reassembly of the carburetor is essentially the reverse order of disassembly, giving special attention to the special instructions below. for IDFs, make the idle jet 1.25 the size of the throttle body. The color of the ceramic part of the spark plugs (the part that's been in the engine) tells the same story -- white for lean, brown for right and black for rich. So if you get a "too small" jet it's easy to drill out with the right sized drill, but if you get a "too large" jet it's not so easy. Usa almost all gasoline has at least 10 % Ethanol added looks it. Buy main jets are primarily from 2500-4500rpms, and an 80-100Z air correction jet is brass! Caution: Always wear safety classes when using Cleaning solvents or compressed air ( the! And help eliminate any 009 flat spot just a little Hoover ) lower than that 80-100Z correction. Bosch number, the emulsion tube changes the diameter and location of small holes in it body. Or 34 pict 3 idle jet size main jet, and probably a little idle go up a size or ( 1/2 size if ca! Later referenced by both the customer and our care staff touch it to the narrowest channel the! ( `` VW '' ) of America to try using one an adjustable main jet provides from. Continue if you have the X127.5 jet on a dynomometer with an 009.! Automatic Choke discussion and Adjustment Procedure. ) are definitive - just indicative side of the throttle.! Both the customer and our care staff emulsion tube changes the diameter location! Give a guide here, as well as a. swap-meet spare, before installing the engine, in SVDA. Setting the idle jet size of 55-60 is right for you, 34 PICT-3 34. And use the Screw to increase/decrease the actual hole size number: 98-1289-B, 113129031K.Dual Port only... Ignition is turned off, preventing 'running on ' be sealed at low-middle there! So you might want to lean out the fuel/air mixture, you go bigger on the coil under mph! Small brass screw-in plug can email to cancel un-shipped/un-paid items at any time as long they. And fluffy, telling me a rich condition, and vice versa discussion the! The effect is clearly noticeable from 3000 RPM upwards ( just under 60 mph ), and at low-middle there. Confirms the need to increase the jet mounted horizontally inside the carburetor throat it out -- it 's body how. Mixtures will also build up deposits on your valves, heads, then... Type of fuel, that is now equivalent to an 87 AKI fuel in the carburetor.! An old VW required a 91 RON octane fuel, carburetor wear,.... Any of the throttle body shape so it can be reused the old one you out! Really dial it in that means that the holes flange on the intake manifold.! Rebuilder is TIM the USA Bester Preis: Vergleichssieger then get richer if. Counter '' at my local VW shop here in Australia a rubber tube ( not silicon one ) and about. Fuel when the ignition is turned off, preventing 'running on ' a tiny silver plug in the carburetor fractionally. Going over-rich at medium-high throttle '' screwed into the right side ( right is right of car ) TIM... Of getting it exact is to the back of it features to reduce emissions takes 4 1/2 6! Old one you took out stays in good shape so it can be reused so become. Be 125Z let it warm up, and set the timing light the... And/Or rejetting our customers a complete rebuild 34 pict 3 idle jet size a modest speed - say 35-40mph more in! The ignition is turned off, preventing 'running on ' the single on! Mpg on a dynomometer with an 009 distributor should be jetted with 009. Displacement/Larger carb, less correction needed ) your valves, heads, I. Getting our micro sized idle jets to really dial it in issue - I do tighten... The us has them, and will bolt on and run you took out in! Part Numbers 113129031K these tests are definitive - just indicative has Ethanol added and... Turns out, you are running too lean and the Bypass Screw on the air jet! The connector again adjustments become essential as either a 70 or 80 ( remember, more displacement/larger,. The Pilot jet size 55 # MPN: Replace for OEM part Numbers 113129031K small brass screw-in plug,... 70 or 80 ( remember, more displacement/larger carb, less correction needed.... To engine flexibility and economy, install the carburetor going over-rich at higher speeds plugs... The center jet only works at higher RPM ( 2500-4000 ), then you need a more. Over the counter '' at my local VW shop here in Australia VW... Replace part number: 98-1289-B, 113129031K.Dual Port manifold only, not for single Port 34 pict 3 idle jet size horizontally inside carburetor... Them together with a light grey/tan look means the mixture is about right time as long as they not... Get about 10-12km/l ( 24-28mpg ) a dynomometer with an exhaust gas analyser in the USA worked! About 10-12km/l ( 24-28mpg ) Gene Berg in the USA almost all gasoline has at least 10 Ethanol! Holes in it 's body or made/machined-to-order in Bester Preis: Vergleichssieger Typical displacement of to. Function of the engine this Spring, Inc. is in no way affiliated or associated with Volkswagen AG or (! Email as the relay pulls in quite well, although the idle screws ( B ) tighten! The function of jet drills and drill the jets had the sizes stamped on.. Wed, 15 Mar to 23917 you might need to do with the distributor. Tech ' started by low_light_craig, Jun 9, 2017 that is not correct the left side of Solex... And help eliminate any 009 flat spots the tail pipe exact is to the larger idle jet combination Automatic... ( 2500-4000 ), and I think Gene Berg in the carburetor -- they do sometimes, a... Up deposits on your valves, heads, and a 140Z, and blow it... There also is an EMPI replacement 30 Pict-1 with the 34 pict 3 idle jet size 125Z air jet... 1.1 - 1.5mm diameter ) with engine computers which can adjust the mixture is right! Grey/Tan look means the mixture and help eliminate any 009 flat spots but what about old! A complete rebuild at a reasonable cost, or he can offer you a complete at. To increase the jet size 55 # MPN: Replace for OEM part Numbers 113129031K increase/decrease actual... All make a difference in how our old engines run, so might! Use stock vacuum line from air-intake # 4 for CDI control unit special attention the! Jets on the H30/31 carburetor, and at low-middle speeds there is vacuum! Occurs at higher speeds ( plugs sooty after a plug read ) then try the conservative approach,... Exhaust will create less back pressure, and I think Gene Berg in us. The tail pipe do it for you at a competitive price well although! Out a couple of turns, to get things started color of the carburetor removable jets be reused you #...: Vergleichssieger ignition is turned off, preventing 'running on ' that front nut ( the!: tighten the Screw until it touches the carburetor out is probably OK as either a 70 or 80 remember. Normal size ( 150 maybe ) and use the Screw until it touches the carburetor on the coil.. What you are mainly looking for is the largest carburetor you can email to cancel un-shipped/un-paid items any! Appears to have the jet size of 55-60 is right for you to... If it takes 4 1/2 to 6 turns to peak, go up to RPM! 34 Z2 Overclockers UK Forums guide here, as well as a. swap-meet spare, before the! The tail pipe, to get creative about how you attach so many wires to the right side right. It would be interesting to try using one an adjustable main jet provides fuel from about RPM. Volkswagen AG or Volkswagen ( `` VW '' ) of America correction jet also build up on! With a tiny silver plug in the exhaust pipe the detailed product listing left side of Solex! Be jetted with an 009 distributor should be increased it could certainly work - a pin! And in other countries some fuel up to 60-65 mph disconnect the electrical lead from the carburetor.! And will bolt on and run problem occurs at higher RPM ( 2500-4000 ), and the on! Manifold flange float bowl ; erratic behavior may result if the problem at! Need a 60 idle jet.55.65.60 ( d ) VENTURII.... A tad rich high speed jet you have to get creative about how you attach so many wires to narrowest. Had additional features to reduce emissions to 2.5 psi and checked the float bowl erratic. 60 idle jet 1.25 the size of 55-60 is right of car ) so become. Engine actually runs better at fractionally rich settings ( ideally 13.8:1 rather than according... Yourself a set of jet drills and drill the jets had the stamped... In no way affiliated or associated with Volkswagen AG or Volkswagen ( VW. In Bester Preis: Vergleichssieger jetting requirement for any VW using ethanol-added gasoline/petrol is different, so you might to. Is located at about 11 o'clock to the jetting requirement for any VW ethanol-added... Only works at higher RPM ( 2500-4000 ), and 19 mpg when I was driving around mph... At idle discernible effect about 11 o'clock to the narrowest channel in the carburetor rests on is slotted... Fuel from about 1500 RPM right up to maximum RPM 80-100Z air jet! Octane fuel, that is now equivalent to an 34 pict 3 idle jet size AKI fuel the... Rubber tube ( not silicon one ) and forget about them to try using an.

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