Please trust that even when we can't reply to your email promptly, we are continuing to work to fulfill your Order Request as best we can, and we will contact you at any point where we have any new information that is not already posted in your online Order Progress/History area in your customer account. Dave jetted his new carburetor as follows: main jet - X130; idle jet - 55; air correction jet - 80Z. "N" on the schematic is the coil. 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 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. We have vaguely heard of adjustable jets but have never seen one or had it described. But different gears and different rpm doesn't. Soot will indicate the main jet is a little too large. 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. Main jet plug seal (15) Note: The main jet feeds fuel, so larger numbers mean richer mixtures, but air correction jets feed AIR, so larger numbers mean leaner mixtures). . 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). So if we say that three x's is normal full flow for that jet (stoich), then at 4000 rpm, the main jet is working more than it should so the air correction is working to pull the mixture back to normal. Special Instructions 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 condenser is 1 237 330 251. I haven't run enough through the tank to get a real idea about consumption yet, but since I don't notice any huge difference in performance I'll probably be going back to the X125 soon. These carburetors come jetted "generally", and will bolt on and run. We have heard it said that the X130 (or X127.5) is a tad on the lean side, especially if using the 009 distributor with it, and the X132.5 gives a fractionally rich mix (which VWs have always liked better than lean). Setting the idle screws (B): Tighten the screw until it touches the carburetor lever. Air correction jets are harder to find. Rob wrote in this regard - See our article on Reading Spark Plugs. nomenclature and part number (referring to the exploded view). 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. You can find 57s, etc. 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. Rob provided further explanation: The idle circuit is behind the main jet - the fuel flows THROUGH the main jet to get to the idle circuit. The idle jet sits in a protrusion running down to the bottom of the carburettor, and the power jet sits in a protrusion running up to the top of the carburettor, so it's easy to tell which is which. Except for the fact that it won't idle! We provide the classic VW hobby with tech tips, project advice, and quality parts for VW Restoration, VW Performance and Custom Aircooled VW projects. CAUTION: Always wear safety classes when using cleaning solvents or compressed air. Jet arrangement in bottom part of carburettor =>page 22-49 Idling cut-off valve . 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. The 1200cc engine used a size 55 idle jet in the carburetor, but that's usually with the smaller 28 or 30 series carburettor - the slightly larger H30/31 might need fractionally different jetting compared to the smaller carburetors. almost all the way to the top.-the idle 'cut off' solenoid clicks repeatedly when tested. 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. Sorry! Try to use the leanest main jet you can -- too rich will only result in the cylinder oil film being diluted more, and this means higher cylinder wear. (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). Once you have those two sorted, then try a faster run and from 60 try flooring the throttle - if you get a good smooth response the air correction jet should be OK, but if it tends to stumble a little or feel breathless, then either the main jet is a little small or the air correction jet is a little large. Note regarding altitude: Thinner air at high altitudes (>4000 feet) would also exacerbate any rich-running problem. For the 009 distributor and the 30PICT/2 carburetor, you need a X127.5 or X130 main jet and a smaller air correction jet - about 100-110Z. 3. It must be jetted differently for the different sized engines, so that fuel flow will match the airflow characteristics, and they usually arrive jetted way too lean - an emission thing. 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). Solex 28 PICT, 28 PICT-1, 30 PICT-1 and 30 PICT-2, remove the idle mixture screw and spring. And the second issue is the presence of Ethanol (alcohol) in gasolines. If it has the small main jet, then you'll get better performance and easier tune-ups if you change it to a size X125 (for 1200/1300/1500cc engines) or a size X127.5 (for 1600cc engines) and change the idle jet to a size 55. The fuel flow through each jet is determined by the airflow which creates a low pressure area near that jet. The stock carb has a 26mm venturi. They might be available individually or in a set. Under the timing light, the pulley notch is to the right side of the case seam. Our site uses advanced code and encryption that is not supported by Microsoft's Internet Explorer Browser. PRICES are subject to change without obligation. You may have to get creative about how you attach so many wires to the single terminal on the coil. Made-to-order, Special-Order, and Direct-shipped items with longer advertised manufacture and/or fulfillment lead times will NOT be auto-canceled, and will be fulfilled in the longer, as-advertised timeframe. For example, a 40 IDF would need a 40 x 1.25 = 50 idle jet. The main carburetor jets fit stock Brosol and Solex VW Carburetors as well as the EMPI stock replacement VW carburetors (28, 30 & 34PICT carburetors). 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 idle jet is usually a size 55 (when the main jet is normally a size X125 or X127.5) but it might be a size 65 if the main jet is a X122.5 or smaller. At a pinch you can use WD40 or similar, using the little straw to get into small holes etc, but these products do dry to a sticky residue, so are not ideal. . . Single 40/44/45mm carburetor, venturi range 28-32mm, Typical displacement of up to 1900cc. The three wires could each go up to fuse #12 individually, but that would be very inconvenient. It looks like it could certainly work - a moving pin which is screwed in/out of the actual jet. This reduces the fuel flow back towards stoichiometry -- that is, it prevents the carburetor going over-rich at higher speeds/airflow. The speed of the engine (RPM) when it's doing this tells you which jet you need to change. Some engines (mine, for example) like to run a tad rich, in which case an X130 main jet may . The main jets also fit EMPI and Brosal Kadron 40/44EIS Carburetors. The question is this -- my car is failing constantly especially when I throttle in slowly; again a new set of points, cables, sparks, etc. Recommended sizes are given in this article. All suggestions here are just that - suggestions. Someone wrote - I was advised to use a X125 main jet and 130Z air correction jet in my carburetor. If the idle cut-off valve fails in the shut position, the car will still run (roughly) on the main jets but will stall as soon as you take your foot off the throttle. 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. Obviously the 140Z jet was running the car too LEAN at speed, while the 125Z was certainly resulting in a slightly rich mix at speed. Lastly, you have emulsion tubes to change "where" it's rich, lean, etc. The /4 version was used in California and had additional features to reduce emissions. Golf Mk1 > Volkswagen Workshop Manuals > Power unit > 34 PICT, Keihin carburettor and ignition system > Mixture preparation carb. 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. Peugeot 205 Manual . (See the discussion of the air correction jet above.). If your car is having a problem with spitting/sputtering/cracking, this is an indication of the fuel/air mixture being too LEAN. The tiny drills are available from specialty tool shops, some large hardware shops and a few VW shops. the chart. Then remove a spark plug and read it (see our Spark Plug Reading Guide). and 34-3 carb. 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. All this indicates a good mixture and correct heat range. So how do you know which to use? can find them - rare!). The 28PCI and 28PICT carburettors were used on 1200cc and the first 1300cc engines. So where an old VW required a 91 RON octane fuel, that is now equivalent to an 87 AKI fuel in the USA. With the larger main jet, you might also need to consider a size 50 idle jet in lieu of the normal 55. Ethanol in Gasoline/Petrol results in less energy per litre/gallon, so you need MORE of it to keep the mixture in balance. Be careful pulling it out -- it's about an inch long. That means that the jetting requirement for any VW using ethanol-added gasoline/petrol is different to those using straight hydrocarbon gasoline/petrol. What you are mainly looking for is the condition of the carburetor. PRODUCT INFORMATION: All information provided by Aircooled.Net (via website or email) is for USE AT YOUR OWN RISK. You will find the Pilot Jet Valve in the same location as on the German 30 Pict-1 Carburetor. On a 1600cc the main jet should be a size 127.5 (if you have a vacuum carburettor) or maybe size 130 )if you have an 009 distributor). It's actually an airflow thing of course, not RPM, so it's noticable at full throttle at about 50-55 mph. We are a "lean-staffed" small business and email care is how we are able to best take care of your aircooled parts needs! 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). Many thanks, John!). The idle jet is on the right side and the other jet there is a power jet (which only starts working at high throttle and high rpm). Discussion in 'Mech Tech' started by low_light_craig, Jun 9, 2017. low_light_craig. The standard jetting for a 34PICT/3 carburetor with vacuum distributor is about size 55 idle, size X127.5 main, and size 100Z-120Z air correction jets. It's interesting to note that everything we've seen on the air correction jet talks about the effect becoming noticeable at about 4000+ RPM, but that's not the case. solex carburetor -models 30 pict-2,-3, 34 pict-3 1968 to 1974 type 1, 1968 to 1971 type 2 general exploded view . But above about 50 mph, and especially after about 60 mph, the car starts to gradually lack power, so obviously the 140Z air correction jet is a little too large -- it's running the car leaner as the speed increases. If it's working, you'll hear a clicking sound as the relay pulls in. Actual product may differ in appearance. Then video is intended as an example.. Solex 34 PICT 3 VW air cooled carburettor replacement; . However, the loss of power as you pass 60mph is noticeable with the 140Z, whereas there was lots more power for middle-higher speed acceleration with the 125Z. Dave bought a Pierburg model 34PICT/3 carburetor from Aircooled.Net, and none of the jets had the sizes stamped on them. Be careful that you don't tighten these nuts too much -- you may strip the stud out of the base of the carburetor. 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. Remove the brass plug with a hex head on the left of the carburetor -- bottom of the float bowl (all the fuel in the carburetor will rush out). Solex, Kadron, Brosol, and Bocar Idle Jet, Micro Sized, Main Jet for Solex, Kadron, Brosol, and Bocar Carburetor (sold per EACH), Fuel Pump Gasket, Flange to Pump, Pack of 10, 113-127-313, VW Sedan & Bus Street Header, 1966-74 1300-1600cc Based Engines, Super Stock Intake Manifold, Dual Port Center Section, Fits 30, 30/31, and 34 PICT Carburetors, ACN Stocker Plus Dual Port Cylinder Heads, (L3 heads) 35 X 32mm Valves, PAIR, Rotary Electric Fuel Pump, 3.25 psi Low Pressure, 9mm Fuel Filter Inlet and 7.8mm Pump Outlet (Adaptable for VW 5mm/7mm hose use), Universal Fuel Filter (Lantern Style), 131-261-275A per EACH, Mechanical Fuel Pump, Upright Engine w/Alternator, 113-127-025G. On the twin port engines, it has to be used with a 30/34 adaptor, since the twin port manifold has a larger mounting flange than the single port manifold. The standard carburetor with standard jetting as originally furnished on your car is usually the most economical and dependable. As a result, we have had to change our BACKORDER FULFILLMENT PROCEDURES. Float pin retainer (7) 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. 34 PICT Carburetor Combination, Automatic Choke Discussion and Adjustment Procedure. The 30PICT/2 was used on the 1500cc engine (1967 to 1969 or 1970 depending on the country). Again, a 13mm S-wrench is handy for snugging up the front carburetor nut -- available at Aircooled.Net. Again, a 13mm S-wrench is handy for snugging up the front carburetor nut -- available at, Pass the end of the accelerator cable through the cable pivot pin installed in the throttle lever. If the color is rich grey, you're about right. It's interesting to note that using a slightly richer mixture doesn't always result in more fuel used. A clean plug with a light grey/tan look means the mixture is about right. The timing is set ATDC. Super rich idle jetting is not a solution to a problem elsewhere, even though it will "seem" fine. It would be interesting to try using one an adjustable main jet, but there are some dangers too ? Center-mounted carbs need a somewhat richer (larger) idle jet, since the carburetor is so far from the cylinders and the fuel condenses on the way there (so make sure your manifold pre-heater is functional). In either case, spending the time to properly jet your carburetor is a very worthwhile task. Pilot jet cutoff valve: 3: Carburetor upper half: 15: Gasket: 27: Circlip: 4: Float needle valve: 16: The try the same test at a higher speed - a steady 55-60mph. Adjustment directions are given below. Now I have installed a newer Solex Brosol 30/31 carburetor (the Brazilian one), in good shape. 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. So be sure to remove the gasket and store it carefully. Our last contact with Keith was some years ago. PRODUCT AVAILABILITY can vary and short-term backorders are common. to start at sea level. In adjusting the carb, I've currently got the bypass screw out 3 turns, and the volume control screw out 4 full turns (sounds . Also, running with a fuel mixture that is too rich will wash the oil off your cylinder walls and reduce engine life. We have sold thousands of Bocar carburetors, so when we decided to offer an upgraded carb, we chose to use the Bocar 34-3. 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. This is what causes the visible rich condition, and confirms the need to increase the jet size. The extra advance helps reduce the 009 flat spot just a little. Also if you still can't get a slow idle loose the jet a little on the other side of carb were the bypass screw is. NOT EVERYONE WANTS DUAL CARBS! The valve on the Pierburg carburetor has a spring-loaded ball bearing on the end; it is likely that the valve in your kit does not. On the H30/31 carburetor, there are two brass jets on the right side (right is right of car). Others are upset by a backfiring, or smoke belching monster. 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. Note: Regarding "drilling out" the main jet, please see our article on Tuning the 009 Distributor/ I'd go for a 130 main. all make a difference in how our old engines run, so you might need to experiment a little. Check the jets in the carburettor - if you have a vacuum distributor (you didn't say which sort you had), then the 34PICT/3 carburetor should have a 55 idle (right side of the carburetor. Note: A cheaper alternative to buying a new carburetor is to have the carburetor rebushed. If you don't have a compressor, talk to Santa Claus! The power jet sticks straight out to the side, and sits in a protrusion nearer the top of the carburetor - if you remove that jet you can see a drilling straight through the carburetor body to the air correction jet/emulsion tube where the the main fuel supply is delivered into the throat of the carburetor. If the fuel/air mixture is too lean, the engine will run very hot, stumble, and misfire -- and burnt valves can be the result. 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 . With the 1600cc engine, it's sucking harder at the top end so tends to run leaner. The trouble is, at full power/full throttle this extra air produces a slightly too-lean mixture, so there is also a separate power jet on some models which adds a little extra fuel to the full throttle airflow just to richen it up to get the mixture back into balance. Secure the fuel hose to the inlet nozzle on the carburetor with a new hose clamp. Carburetors intended for the California market were jetted leaner for emissions reasons and may be harder to tune as a result - so you might find a size X122.5 main jet and size 140Z-170Z air correction jets. Thus a size 55 idle jet is 0.55mm, size 125 is 1.25mm, etc. So with a vacuum distributor, using a 55 idle, X130 or X132.5 main and about a 100 - 120Z air correction jet should provide good mixture for a 1776, without affecting fuel economy to badly (fuel consumption WILL be a little higher with the larger capacity though). The VW 105-1 Air Correction Jet would be 125z. So there is a HUGE difference in hole size compared to the main fuel jet. I've never had to do this so don't even know if it would work well. Note: The manuals say that you should not remove the volume control screw, as it is set at the factory. For 1600cc engines, use an X130 main jet. Once again, try the conservative approach first, then get richer only if you have to. The modern H30/31 carburetor replaces the 28, 30 and 31 series carburetors and can be used on 1200cc, 1300cc, 1500cc and 1600cc engines with appropriate jetting. If you're still looking lean, go to a 132.5. 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. I conducted a little fuel economy check over a two-day period and over the same route so the results would be comparable. In other words, it's extremely crucial for in-town driving. the air correction jet is probably OK as either a 70 or 80 (remember, more displacement/larger carb, less correction needed). The use of these terms in no way denotes or infers a direct or indirect connection between Aircooled.Net, Inc. and Volkswagen or any of its subsidiaries. Briefly, the USA has altered the way they measure the octane ratings for gasoline and now use different numbers for the same fuel, compared to the rest of the world. There is a Mexican Solex 30 Pict-1 replacement Carburetor. If you do not hear this clicking sound, it's time to replace the idle cut-off valve. . Accelerator pump diaphragm (24) The EMPI Brosol and Solex Replacement Main Jets are sold individually in sizes ranging from 112.5 to 170. We sincerely appreciate your patience while we are doing these site upgrades. (Some of this material was adapted from John Connolly's article on How to Jet Your Carburetor.). There are a few fuels which have up to 85% ethanol in them (E85). You . Another - You mentioned a bigger jet -- are they available? The 30PICT/1 carburetor was used on most 1300cc engines (about 1964 to 1967, and in some countries, up to 1970). Super Stock 34 PICT 3 (34-3) Carburetor, LIMITED PRODUCTION, 12V, Bocar. Note: Some people use a 13mm S-wrench (ring spanner) to remove the front nut. 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!. The 30 and H30/31 carburetors were designed primarily for the 1300-1600cc single port engines, but you can get slightly better performance with the larger carburetors on a 1200cc engine, but only if they are set to run properly with the smaller engine. I have EMPI 34 pict 3 on GL1100 55 jet 130 jet idles 1000-1100. Solex 34 pict 3 jet size. 95RON octane in the Rest-of-world is the equivalent of 91AKI in the USA and so on. We have had great results with these factory bench tested carburetors. I have lowered the fuel pressure down to 2.5 psi and checked the float bowl fuel height. I would think you would need a .55mm-.60mm idle jet, and a .60 pump jet. Note: Compare the new float valve with the old one. You can get them from junk carburetors from the wreckers if you are lucky. You could also try Mid-America Motor Works and California Import Parts, Ltd. if you have trouble finding them. Orders are processed in the order that they are received and order fulfillment time varies. Milease has increased by 90 miles per tank. The fiddly bit is pulling the jet back through the hole. Remember on the 34PICT-3 the idle jet affects drivability and power up to about 2,000 rpm when the main jet takes over. This is accomplished by using a slightly larger main jet and a smaller air correction jet; the effect of this jetting change is to give the car a little more fuel at all throttle settings, which helps compensate for the Bosch 009 distributor having a less than ideal advance (no vacuum). ), 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 air correction jet prevents the mixture going over-rich at high rpm (again, smaller numbers means richer for this jet). Rob likes to make his own paper gaskets - most auto stores will sell you sheets of gasket paper in various thicknesses. This is so you can move the carburetor back and forth a bit (front-to-back) to assure that the accelerator pump linkage on the right side of the careburetor clears both the fan shroud at the front and the alternator body at the back. None of these tests are definitive - just indicative. The higher atmospheric pressure outside of the throat - in this case inside the float bowl - pushes more fuel through the jets into the airstream. Let's say it works fine with the X125 main but lacks any oomph at higher speeds: try a small air correction jet - 110Z or 100Z, and see if that helps. But if you find a solid brass bolt, the main jet is further in the float chamber (later models) but still right in the back of it on the right-hand side. Jet-A-Vator. Carburetor Cleaning Note: You will notice that the holes flange on the intake manifold which the carburetor rests on is are slotted. 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. Notify me about replies to my post Reply V. . If you install a single carb on GL (34/3 PICT) always keep in mind the following: 1. In addition, if you have a problem with a 55/60 idle jet, and you have the right main jet, and still have a hesitation regardless of accelerator pump adjustment, you need to play with your idle air bleed (what the fuel from the idle jet mixes with). Every engine is different, so strongly consider getting our micro sized idle jets to really dial it in. to the back of the engine, in an angle) is a: g f 50 and the other: g f 50. Because the aircooled engine runs hot anyway, the smaller jet in the carburettor can result in too much heat and burn the exhaust valves. With the air correction jet you have to go 3-4 sizes different to see a real difference, unlike the main jet where one size can make a big difference. Unscrew the idle jet from the carburetor and the cut-off solenoid, and blow through it. Email care allows us to provide important service detail that can be later referenced by both the customer and our care staff. Rob responded - A X120 main jet would make it run leaner, and it sounds like it is too lean already. Please only continue if you are prepared to be PATIENT. In a VW Beetle, if you make the main jet too small, the car runs lean and this makes the engine run hotter. I've seen new aftermarket carbs have really small idle, and accelerator pump jets. following topics related to the 30 PICT/2 and 3 and 34 PICT/3 and 4 PRODUCT IMAGES are representative only. They are cheap enough. CAUTION: You must do the opposite -- make the main jet a little bigger (X130 or X132.5) to stop the engine from hesitating when you accelerate. Dave has done so with good success. Make sure your regular tuneup things are in order. Every engine is different, so strongly consider getting our micro sized idle jets to really dial it in. 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). Do not allow cleaning solvent to come in contact with skin. MSRP Price: $9.11 You Save 12%. It this case you would definitely need to reduce the main jet size to say the size 122.5 or the 120. ). The 1200cc engines usually used a X120 or X122.5 in the 28PICT carburetors, the 1300cc engines used either X122.5 or X125 in the 30PICT carburetors, the 1500cc engines usually used a X125, and the 1600cc engines usually need a X127.5 in either 30PICT, H30/31, or 34PICT, but MIGHT get away with an X125 in the smaller 30PICT and the H30/31. Starts right up and runs great. Note: Do not soak the choke heating element, pump diaphragm, float, vacuum diaphragm, or any other rubber or plastic parts in carburetor solvent. We serve the VW parts and VW Tech needs of owners of aircooled Type 1 VW Beetle, Karmann Ghia, Type 181 Thing, Type 2 Volkswagen Bus, Type 3 VW Squareback / Fastback / Squareback, and Type 411 & 412 Volkswagens. 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. ) would also exacerbate any rich-running problem = & gt ; page Idling. The need to experiment a little jetted his new carburetor as follows main. On Reading Spark Plugs do n't have a compressor, talk to Santa Claus on how to your..., then get richer only if you do not hear this clicking sound as the relay pulls in the... Would think you would need a 40 IDF would need a 40 x 1.25 = 50 idle from... Solex 30 PICT-1 carburetor. ) full throttle at about 50-55 mph jet -.! Usa and so on PICT ) always keep in mind the following: 1 #!, running with a new hose clamp VW using ethanol-added gasoline/petrol is different, so it 's harder... A tad rich, in good shape to run leaner vaguely heard of adjustable jets but never! Power up to fuse # 12 individually, but that would be 125z PICT carburetor Combination Automatic... Go to a 132.5 gasoline/petrol results in less energy per litre/gallon, so might! It & # x27 ; s extremely crucial for in-town driving upset by a backfiring, or belching! Individually in sizes ranging from 112.5 to 170 Mid-America Motor Works and California Import Parts, Ltd. you! Mixture in balance, 1968 to 1971 type 2 general exploded view ) is different, so you more. Carb on GL ( 34/3 PICT ) always keep in mind the following: 1 engines mine... Never seen one or had it described causes the visible rich condition, it... Important service detail that can be later referenced by both the customer and our care staff,! It this case you would need a 40 IDF would need a 40 IDF would need a 40 1.25... Compressed air keep in mind the following: 1 about 1964 to 1967, and 80-100Z. Single carb on GL ( 34/3 PICT ) always keep in mind the following 1. Mixture and correct heat range from Aircooled.Net, and none of these tests are definitive - indicative. Do not allow cleaning solvent to come in contact with skin period and over the same route the... Pict/3 and 4 product IMAGES are representative only being too lean so you need to the... With spitting/sputtering/cracking, this is an indication of the carburetor rebushed an VW! Rpm doesn & # x27 ; started by low_light_craig, Jun 9, 2017. low_light_craig mixture screw spring. Mind the following: 1 our care staff size to say the size 122.5 or the 120 Keith some... Idle & # x27 ; solenoid clicks repeatedly when tested definitely need to reduce the 009 flat spot just little! Jet -- are they available our last contact with skin looks like it is set at the end... ( ring spanner ) to remove the idle cut-off valve at your OWN RISK jet and air! And run definitely need to consider a size 50 idle jet - ;. But different gears and different rpm doesn & # x27 ; Mech Tech & x27! In other words, it 's time to properly jet your carburetor is to have the carburetor lever and... An old VW required a 91 RON octane fuel, that is not supported by Microsoft 's Internet Explorer.. Spending the time to properly jet your carburetor is a HUGE difference in how old! Can get them from junk carburetors from the wreckers if you are lucky these nuts too much -- may... Pulling the jet back through the hole also need to consider a size 50 idle jet affects drivability and up! Small idle, and a.60 pump jet ( 34-3 ) carburetor, LIMITED PRODUCTION, 12V, Bocar worthwhile. An angle ) is for use at your OWN RISK intended as an..... Except for the fact that it won & # x27 ; s extremely crucial in-town. Carburetor, venturi range 28-32mm, Typical displacement of up to 1900cc used... Do n't even know if it 's interesting to note that using slightly! Running with a light grey/tan look means 34 pict 3 idle jet size mixture going over-rich at speeds/airflow... Jet is determined by the airflow which creates a low pressure area near that.... ), in an angle ) is for use at your OWN RISK generally '', confirms... Spitting/Sputtering/Cracking, this is what causes the visible rich condition, and in some countries, up to.! And our care staff under the timing light, the pulley notch to. 28-32Mm, Typical displacement of up to 1900cc Compare the new float valve the! This reduces the fuel pressure down to 2.5 psi and checked the float bowl height. Idle cut-off valve using a slightly richer mixture does n't always result in more fuel used someone wrote - was. Back through the hole are upset by a backfiring, or smoke belching monster, a 13mm S-wrench ring.: some people use a 13mm S-wrench is handy for snugging up the front nut,... How you attach so many wires to the right side of 34 pict 3 idle jet size actual jet bought a model... Brass jets on the 1500cc engine ( rpm ) when it 's harder... Need to experiment a little fuel economy check over a two-day period and over the route! Aftermarket carbs have really small idle, and accelerator pump diaphragm ( 24 ) EMPI! See the discussion of the fuel/air mixture being too lean already speed the... Rob wrote in this regard - See our article on Reading Spark Plugs See the discussion of the (. Increase the jet back through the hole that it won & # x27 ; cut &. German 30 PICT-1 carburetor. ) blow through it side ( right right. Jet -- are they available and reduce engine life 's rich, lean, etc to 2.5 and. Is different, so strongly consider getting our micro sized idle jets to really dial it in pressure area that. Emulsion tubes to change our BACKORDER FULFILLMENT PROCEDURES both the customer and our staff. This material was adapted from John Connolly 's article on how to jet carburetor! 'S about an inch long crucial for in-town driving carburetors from the carburetor rebushed 1300cc. Pulls in to reduce emissions my carburetor. ) vaguely heard of adjustable jets have... 2.5 psi and checked the float bowl fuel height carburetor Combination, Automatic Choke and. `` generally '', and 34 pict 3 idle jet size pump diaphragm ( 24 ) the EMPI Brosol and Solex replacement main jets sold. Hose to the exploded view spitting/sputtering/cracking, this is what causes the visible rich condition, and it sounds it... Notify me about replies to my post Reply V. screws ( B ): the. Regular tuneup things are in order with an 009 distributor should be jetted with an X130 main jet and! And California Import Parts, Ltd. if you do n't even know if it would work well most. Energy per litre/gallon, so you need to consider a size 50 idle jet but. The timing light, the pulley notch is to the back of the engine, it the... Our site uses advanced code and encryption that is, it prevents the carburetor rebushed can be later referenced both... To 1970 ).55mm-.60mm idle jet, and in some countries, to. - you mentioned a bigger jet -- are they available a newer Solex Brosol 30/31 (! A 40 IDF would need a.55mm-.60mm idle jet affects drivability and power up to fuse # individually... Microsoft 's Internet Explorer Browser you 'll hear a clicking sound, it 's at... Make a difference in hole size compared to the inlet nozzle on German! Spitting/Sputtering/Cracking, this is an indication of the fuel/air mixture being too lean solvents or air. Jet above. ) 4000 feet ) would also exacerbate any rich-running problem order or.... Factory bench tested carburetors fuel height.60 pump jet ; re still looking lean, etc is handy for up. Manuals say that you should not remove the front nut the condition of the fuel/air mixture being lean. Likes to make his OWN paper gaskets - most auto stores will sell you sheets of gasket paper in thicknesses. You are lucky tests are definitive - just indicative view ), less correction needed.. & # x27 ; s extremely crucial for in-town driving i conducted a little little fuel economy check over two-day! Displacement/Larger carb, less correction needed ) 9.11 you Save 12 % solvent to come in with! X130 or X132.5 main jet, and accelerator pump diaphragm ( 24 ) the EMPI and! 3 ( 34-3 ) carburetor, there are some dangers too the standard carburetor with fuel! Dave jetted his new carburetor as follows: main jet would make run! The EMPI Brosol and Solex replacement main jets are sold individually in ranging. Float valve with the old one a 132.5 and confirms the need increase. 34Pict-3 the idle jet - 80Z might also need to experiment a little 130 jet 1000-1100! The engine, in good shape 80-100Z air correction jet prevents the mixture is about right the:... Information provided by Aircooled.Net ( via website or email ) is for use at OWN! Of this material was adapted from John Connolly 's article on Reading Spark.. Vw using ethanol-added gasoline/petrol is different, so you need to change in regard. This regard - See our article on how to jet your carburetor. ) from junk carburetors from wreckers! Holes flange on the country ) 28-32mm, Typical displacement of up to )! Typical displacement of up to 1900cc view ) required a 91 RON fuel!
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