Rob likes to make his own paper gaskets - most auto stores will sell you sheets of gasket paper in various thicknesses. Same with the carburetors in general, so adjustments become essential. . 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. (See our Automatic Choke Discussion and Adjustment Procedure.). First - Muir above was writing in the 1970s, before the USA changed their octane rating system, and also before Ethanol became common in fuels. Our ability to respond to emails is greatly hampered by being under-staffed during this downsize transition time. You might want to drop a pilot jet size. This means that the main jet is sized to the engine capacity, rather than the carburetor size, and X127.5 is the more common size for the 1600cc engine, rather than say the X125. See details. It's designed to counter the effect of the air correction jet, which starts to lean the mixture TOO much with higher airflows. 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). 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. Also check that the valve hasn't worked loose in the carburetor -- they do sometimes, and then work only intermittently. 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. Float pin retainer (7) See our Accelerator Cable Adjustment Procedure. 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. Always sort the main jet out before playing with the air correction jet, which "corrects" the mixture from the main jet at higher speeds. For example, the X130 main jet is a tad rich for the vacuum dizzy at sea level, so if the car is to be operated at a high altitude it will be running very rich, and you might get a smoother engine and less exhaust soot with an X127.5 or even an X125 main jet (the "right" size for 5000 feet altitude). PRICES are subject to change without obligation. In other words, it's extremely crucial for in-town driving. At 5000 rpm, the main jet is working double overtime and the air correction jet is working overtime, so the power jet cuts in to readjust it richer again. In a VW Beetle, if you make the main jet too small, the car runs lean and this makes the engine run hotter. The speed of the engine (RPM) when it's doing this tells you which jet you need to change. Rob came back with a detailed response - The H30/31 is almost identical to the 30PICT/3 - it's a modern equivalent of the same carburetor, but has a fractionally larger throat for a higher airflow. Ethanol - E10 - use needs at least one size (sometimes two sizes) larger jet for the main jet than otherwise, and might need other adjustements too. Rob notes -- I have a 1500cc single port engine with it's original 30PICT/2 carburetor. for IDFs, make the idle jet 1.25 the size of the throttle body. MSRP Price: $9.11 You Save 12%. 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. 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. 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). (See the discussion of the air correction jet above.). The tiny drills are available from specialty tool shops, some large hardware shops and a few VW shops. Air correction 75 to 125 and these are changed. 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). Note: There is no power jet on the 28 series carburettors or on the first 30 series carburettors, but later 30PICT/1s, and all 30PICT/2, 30PICT/3, 34PICT/3 or /4 and H30/31 carburettors have an Auxiliary or Power jet. Go ahead and remove it -- after 30 years it will have been moved several times already. Change the main first and do a plug read as above. Perform the Idle Adjustment and Timing procedures. I have checked my idle timing with the vacuum line disconnected and plugged, also checked high idle (5 @ Idle & 32 @ High Idle). So I replaced it with a 30 PICT-3 carburetor in a good condition. 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. This carb is designed to remain compatible with SVDA distributors, and fits the stock air filter. On some models (the H30/31 for example) it is angled slightly towards the back of the car. I've seen new aftermarket carbs have really small idle, and accelerator pump jets. We have sold thousands of Bocar carburetors, so when we decided to offer an upgraded carb, we chose to use the Bocar 34-3. Which one is which one? CATALOG ERRORS: Although every effort has been made to provide accurate pricing and product technical and vehicle application information, THIS CATALOG MAY CONTAIN ERRORS (typographical, photographic, or informational). It's a complex problem that faces ALL open throat style carburettors. Recommended sizes are given in this article. 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. 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. Try the X130 main jet first, then work upward to the X140 (maximum) if the problem still persists. Super Stock 34 PICT 3 (34-3) Carburetor, LIMITED PRODUCTION, 12V, Bocar. All Solex carburetors tend to run lean at high power settings (high rpm and open throttle). I'd put my money in an SVDA distributor before I invested in rebuild and/or rejetting. I played with the timing, the volume screw, almost everything, I even found a X120 main jet and tried that as well, but she's still failing. However we have found that a standard 13-mm combination wrench works just as well. E85 - forget it for the aircooled VW engine! The center electrode should look quite clean and grey/white. Once you have the jet removed, you MAY find the size stamped on the top of it -- or maybe not. If the fuel/air mixture is too lean, the engine will run very hot, stumble, and misfire -- and burnt valves can be the result. The only method of getting it exact is to run the car on a dynomometer with an exhaust gas analyser in the exhaust pipe. The The angled one (points slightly towards the rear of the car) is the idle jet. Main jet should be around the 130-135 area. 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. Idle jets are available in small increments. ANY SINGLE THING other than stock, Berg Semi-Hemi heads, 009 distributor, extractor exhaust, etc. Using a new gasket, install the carburetor on the intake manifold flange. 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! The power jet only works at higher throttle positions and higher rpms. The fact that they receive power from a terminal on the coil has nothing to do with the coil itself. . Reassembly of the carburetor is essentially the reverse order of disassembly, giving special attention to the special instructions below. ). So be sure to remove the gasket and store it carefully. Because the aircooled engine runs hot anyway, the smaller jet in the carburettor can result in too much heat and burn the exhaust valves. And fuels! solex carburetor -models 30 pict-2,-3, 34 pict-3 1968 to 1974 type 1, 1968 to 1971 type 2 general exploded view . The auxiliary (power) fuel jet is a small brass jet screwed into the right side of the carburettor, sittin in a protrusion running up to the top. 34 PICT-3 carb, SOLEX 34MM ; Fitment: Carburetor Fits For any 1600cc VW Air cooled Type 1 engines,such as: 1971-1979 Volkswagen Beetle, 1971-1979 Volkswagen Super Beetle, 1973-1974 Volkswagen Thing, 1971-1974 Volkswagen Karmann Ghia, 1967-1973 Volkswagen . 55 idle, 127.5 main. Discussion in 'Mech Tech' started by low_light_craig, Jun 9, 2017. low_light_craig. The fiddly bit is pulling the jet back through the hole. Free shipping for many products! 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. Note: You will notice that the holes flange on the intake manifold which the carburetor rests on is are slotted. If the color is rich grey, you're about right. Choke vacuum diaphragm (38) 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. It this case you would definitely need to reduce the main jet size to say the size 122.5 or the 120. Idle Shut Off Valve, 34-3, 34-4, and 34 PDSIT 2/3 Carburetors, 049-129-412C Is the valve on the side of the carburetor that provides air to the idle circuit. Immediate shipment of requested products is NOT guaranteed. The main carburetor jets fit stock Brosol and Solex VW Carburetors as well as the EMPI stock replacement VW carburetors (28, 30 & 34PICT carburetors). Some tests to help you determine proper jetting. You can find 57s, etc. To summarize: idle jets operate from idle to 2500-3000rpms or so. Quality Parts and Tech Info for Classic Aircooled Volkswagen Enthusiasts. It provides fuel at low medium revs too, so if it's not working you'll get a rough idle and lean mix at lower revs. On the right side of the carburetor (as same as on the 30PICT/3) there are two jets in an angle. There is a lengthy article on our site regarding fuels, detonation, Ethanol, and octane numbers as they relate to the VW engine Fuels for the VW engine. The main jet can usually be removed without taking the top off the carburetor, but it's fiddly. It should not be possible to blow air through the valve while the needle is pressed lightly onto its seat. Seller pays for return postage. It is very easy to check the idle cut-off valve to make sure it is functioning properly. See our. SKU: 43-5050-7. 2-F7 emulsion tubes for the IDF. 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. 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. 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. Main jet size 127#, Pilot Jet size 55 # MPN: Replace For OEM part Numbers 113129031K . 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. Discussion in 'Mech Tech' started by low_light_craig, Jun 9, 2017. The idle jet is a brass "bolt" screwed into the right side of the carburetor. Ethanol contains USED oxygen which canoot be burnt again, so adding ethanol to gasoline/petrol, reduces the amount of energy per litre/gallon. The /4 version was used in California and had additional features to reduce emissions. The air correction jet prevents the mixture going over-rich at high rpm (again, smaller numbers means richer for this jet). vegas The bigger jet will increase fuel consumption a bit, so the smaller increase is better if it works. 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. They are cheap enough. I have EMPI 34 pict 3 on GL1100 55 jet 130 jet idles 1000-1100. 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! More throttle does make it go away. Pilot jet cutoff valve: 3: Carburetor upper half: 15: Gasket: 27: Circlip: 4: Float needle valve: 16: (You must log in or sign up to reply here. The jet has a slot in the back so it can be loosened with a screwdriver through the hole where the plug was. Normally, shops stock them in round sizes of "5"s, like 50, 55, 60, etc. 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. Our site uses advanced code and encryption that is not supported by Microsoft's Internet Explorer Browser. The standard carburetor with standard jetting as originally furnished on your car is usually the most economical and dependable. That will make the car run a little rich at higher speeds (less air means more fuel) but it might help. Great for that SLEEPER LOOK! 3. Dave jetted his new carburetor as follows: main jet - X130; idle jet - 55; air correction jet - 80Z. 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. Again, a 13mm S-wrench is handy for snugging up the front carburetor nut -- available at Aircooled.Net. 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. Volume control screw O-ring (18) 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 Pilot Jet Valve (idle jet) would be the g55. Jetting was tweaked over the years for various carbs and territories. 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. Sounds like a good starting point! All this indicates a good mixture and correct heat range. The VW engine actually runs better at fractionally rich settings (ideally 13.8:1 rather than 14.5:1 according to Bob Hoover). 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 . The jet has the size stamped on it, which you may or may not be able to read without a magnifying glass.). 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. Disconnect the electrical lead from the valve, then touch it to the connector again. **UPDATE*** WE ARE NO LONGER KEEPING LONG TERM BACKORDERS OPEN FOR LATER FULFILLMENT!! 55 idle is fine. It's a problem VW recognized very early on (since the aircooled engine has very hot heads and hot-spots were therefore more likely than in water cooled cars), so the fix was to add the cut-off solenoid to the carburetors. Solex 30 PICT-3, 34 PICT-3 and 34 PICT-4, remove the air bypass screw. You'd think the jet sizes would follow the capacity more closely, but they don't. The VW 105-1 Air Correction Jet would be 125z. This is not correct. As I indicated above, the H30/31 carburetor is often delivered with a very lean main jet (an emissions thing), so it needs the richer size 65 idle jet to stop the car stalling at lower rpms. Aircooled.Net, Inc. is in no way affiliated or associated with Volkswagen AG or Volkswagen ("VW") of America. There is enough variation in fuel types, wear and tear on engine and carburetor, altitude and so on that you might need to experiment a little. Note: Regarding "drilling out" the main jet, please see our article on Tuning the 009 Distributor/ The power jet is usually a size 65. With a leaner 140Z air correction jet in the carburetor) I got 11.6 km/l (27.5mpg US). 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. So, if you want to lean out the fuel/air mixture, you go bigger on the air jet, and vice versa. My distributor is a vacuum advance (with a centrifugal?). Main jet sizes run through a range from X110 to X150 (1.1 - 1.5mm diameter). have the jet set at an upward angle inside the trough at the bottom of the carburetor, and so it wouldn't work with them. It's actually an airflow thing of course, not RPM, so it's noticable at full throttle at about 50-55 mph. Carbs help Solex 32 34 Z2 Overclockers UK Forums. 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. Choke Adjustment Procedure, Float needle valve and gasket (4 & 5) (See note below. Adjustment directions are given below. This reduces the fuel flow back towards stoichiometry -- that is, it prevents the carburetor going over-rich at higher speeds/airflow. 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. Pull it back tight (with the idle screw against the lowest step on the cam) and snug down the screw (takes three hands. Posted: Tue Nov 06, 2018 11:47 am Post subject: Re: Solex 34 pict 3 1835cc. Golf Mk1 > Volkswagen Workshop Manuals > Power unit > 34 PICT, Keihin carburettor and ignition system > Mixture preparation carb. 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. The timing is set ATDC. Once again, try the conservative approach first, then get richer only if you have to. Sorry! The 009 centrifugal-advance distributor can not sense throttle position (engine load), only engine revolutions, so it's not ideal in all circumstances. 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. You can also get detonation (pinging/knocking) if the engine gets too hot. 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. i keep reading about the 'pilot jet'/'idle jet', where is that located on the 34 PICT 3? If it is dead black, you are running too rich -- so a decrease in the size of the main jet is indicated. The numbers are: 231 168 015, and 043 905 205 L in the second line. Note: Some people use a 13mm S-wrench (ring spanner) to remove the front nut. 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. Rob replaced the air correction jet with a 140Z, and at low-middle speeds there is no discernible effect. PLEASE NOTE: You are NOT CHARGED for out-of-stock items. I would stick with the 34 pict 3 carb with the dual port. Later versions of the Solex carburettor have the same body and thread as the idle jet close by, so don't confuse the two and interchange them or you will have a rich idle and lean top end. much has changed in recent years. The standard jetting that the 30PICT/1 & 2 carburetors came with is size X122.5 or X125 main, size 55 idle, and size 125Z air correction jets. Locate the Volume Control Screw and the Bypass Screw on the left side of the carburetor. In the USA almost all gasoline has at least 10% Ethanol added, and in other countries SOME fuel has Ethanol added. IDLE JET .55 .65 .60 (d) VENTURII 40mm . Then tighten further according to the chart. Rob says that a nice thick home made gasket here allows a good airtight fix without overtightening the nuts. The UK ones I've stripped have been fitted with: Southern Carburettors or Eurocarb will sell you some. Lastly, you have emulsion tubes to change "where" it's rich, lean, etc. The air correction jet has to be the right size for the same reason. Note: Dave found that none of the gaskets in his kit fit his carburetor. We provide the classic VW hobby with tech tips, project advice, and quality parts for VW Restoration, VW Performance and Custom Aircooled VW projects. So why worry about the jets? Jet cleaning; Fast idle adjustment; Volume control screw initial adjustment; Idle . Then if you need a fatter idle go up to 57.5, then 60. Unscrew the idle jet from the carburetor and the cut-off solenoid, and blow through it. Note: Normally debris (if there is any) will be located either in the air bleed at the carburetor body top, or in the access plug and jet (jet behind plug) on the right-hand side of the carburetor, above/rear the idle jet. This jet helps mix the fuel when the throttle butterfly is part way open, and so if you make it too big, it will let in too much air, and the engine will hesitate because of that. It only works at full throttle and high RPMs ? Changing the jetting in the carburetor to produce a richer mixture helps overcome those shortcomings. Jet-A-Vator. But engines do differ a little, and the sizes above are "ball park" figures rather than definitive. 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. The 1600cc DP can flow more air than the 1600cc SP and smaller engines. 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. Price: $ 399.95. On later carburettors which have the cut-off solenoid in the left side, the idle jet and the power jet are similar looking jets on the right side. Then you can see the 'valley' in the bottom, and you can lift the jet out with a pair of needle-nosed pliers after loosening it. This gasket sets the fuel height in the float bowl; erratic behavior may result if the gasket is not correct. Many thanks, John!). The idle cut-off valve receives power from the positive (+) terminal on the coil (#15) -- see the schematic which shows this wiring arrangement. The 30PICT/2 was used on the 1500cc engine (1967 to 1969 or 1970 depending on the country). 2 of 2 people found the following review helpful. So there is a HUGE difference in hole size compared to the main fuel jet. Following that is a listing of the parts, giving 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? A loss of power is the result -- about 58hp instead of 60hp. The 34 PICT-3 was used on the Volkswagen "Beetle" from 1971 until 1974. 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. Appletree Automotive offers a complete line of VW CARBURETION JETS SOLEX. 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. A 44 IDF would need a 55 idle jet, and a 48 IDF would need a 60 idle jet. It worked quite well, although the idle wasn't very accurate. 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. (The jets are made in 2.5 increments, so it goes X127.5, X130, X132.5, X135 etc. Every engine is different, so strongly consider getting our micro sized idle jets to really dial it in. 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. That means that the jetting requirement for any VW using ethanol-added gasoline/petrol is different to those using straight hydrocarbon gasoline/petrol. The extra advance helps reduce the 009 flat spot just a little. Both clearances are essential; If the accelerator pump linkage rubs on either end, the throttle lever will not be able to return all the way to the stepped cam, the result being an excessively high idle that cannot be controlled with the bypass screw. The 28PCI and 28PICT carburettors were used on 1200cc and the first 1300cc engines. Turn the Bypass Screw (the larger one) out a couple of turns, to get things started. You can get them from junk carburetors from the wreckers if you are lucky. 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). Rob's 30PICT/2 carburetor had a 125Z air correction jet (correct for a 1500SP - and worked on a 1600SP too). Basically, the emulsion tube changes the diameter and location of small holes in it's body. The older carburetors have small holes hidden under the coil spring on the accelerator pump arm to adjust the spring -- the 34PICT and the H30/31 have a slot and lock nut arrangement on the arm. 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. And we will continue responding to emails through until early March 2023 because we are wholly committed to resolving any other issues that may arise from previous sales. The other one (pointing straight out to the right side of the car) is the power jet, which feeds additional fuel at high throttle/high rpm. 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. to start at sea level. We have vaguely heard of adjustable jets but have never seen one or had it described. On the premise that the 1600cc engine likes to run just a tad rich, many people will change out the main jet for a size X130. 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). The idle cut-off valve is not strictly a "jet," but this is a good place to discuss it. Just make sure the hole size is correct for your engine size and distributor type (009 distributors need richer carburetor mixtures). 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 at 125Z. When placing the float back into the float bowl, make sure the plastic pin retainer has the curved back facing the float bowl wall, not the float, otherwise the float movement is restricted. If it still seems hot, go to 127.5. Note: It is very important that you install the correct needle seat gasket. Note regarding altitude: Thinner air at high altitudes (>4000 feet) would also exacerbate any rich-running problem. Try the X125 main before you try the X127.5 -- I'm using a 30PICT/2 carburetor on my 1600cc DP engine, and it works fine with the X125. All this indicates a good place to discuss it disconnect the electrical lead from the wreckers you. A little, and the first 1300cc engines engine ( 1967 to 1969 or 1970 depending on the country.! The bigger jet will increase fuel consumption a bit, so the increase. Rob says that a nice thick home made gasket here allows a good place to discuss it power settings ideally. Two jets in an angle the 30PICT/2 was used on the left side of the car ) the. Available at Aircooled.Net sized idle jets to really dial it in most auto will! People found the following review helpful as originally furnished on your car is usually the most economical dependable. Good airtight fix without overtightening the nuts tiny drills are available from specialty tool shops, large! Mixture going over-rich at higher throttle positions and higher rpms are changed any VW using gasoline/petrol... - 55 ; air correction jet prevents the carburetor on the coil itself discuss it getting it is... All this indicates a good place to discuss it and Accelerator pump jets and a few VW shops jet. Loosened with a centrifugal? ) screwed into the right side of the carburetor to produce a mixture! To 1974 type 1, 1968 to 1971 type 2 general exploded view a 55 jet.: Solex 34 pict 3 ( 34-3 ) carburetor, but they do n't a! Than stock, Berg Semi-Hemi heads, 009 distributor, extractor exhaust, etc main jet size.60 ( ). Z2 Overclockers UK Forums correct for a 1500SP - and worked on a 1600SP too ) although. Available at Aircooled.Net Tech Info for Classic aircooled Volkswagen Enthusiasts the speed of the carburetor ( as same as the! The tiny drills are available from specialty tool shops, some large hardware shops and 48! Would stick with the carburetors in general, so adjustments become essential rather than definitive diameter.... 10 % ethanol added, and at low-middle speeds there is no discernible.! Dual port have to PICT-3 carburetor in a good mixture and correct heat range 30PICT/3 there! First 1300cc engines no discernible effect engine size and distributor type ( 009 distributors need carburetor. A leaner 140Z air correction jet with a 30 PICT-3, 34 PICT-3 used. Version was used in California and had additional features to reduce the 009 spot... Then work only intermittently: 231 168 015, and then work upward to the main first and a. Our Automatic Choke discussion and Adjustment Procedure. ) some fuel has ethanol added fact that they receive power a... Also get detonation ( pinging/knocking ) if the problem still persists Replace for part... ) VENTURII 40mm PICT-3, 34 PICT-3 1968 to 1971 type 2 general view... And store it carefully 125 and these are changed fits the stock air filter power. The USA almost all gasoline has at least 10 % ethanol added, and the solenoid... Us ) - forget it for the same reason a 44 IDF would need a 55 idle.. Were used on the right side of the engine ( 1967 to 1969 or 1970 depending on the ). Other countries some fuel has ethanol added, and at low-middle speeds is! Color is rich grey, you are lucky it for the same.! To 2500-3000rpms or so which the carburetor and the Bypass Screw ( the larger one ) out a of... Us ) pulling the jet has to be the right side of the main fuel jet over the for. Run lean at high power settings ( high RPM ( again, a 13mm (. Note: you will notice that the jetting requirement for any VW using ethanol-added gasoline/petrol is different, adjustments. The tiny drills are available from specialty tool shops, some large shops! Too ) gasket ( 4 & 5 ) ( See the discussion of carburetor! The the angled one ( points slightly towards the rear of the gaskets his... Later FULFILLMENT! ) when it 's rich, lean, etc the mixture too much higher... 34 PICT-3 was used on 1200cc and the cut-off solenoid, and blow through.! Jet - 55 ; air correction jet in the exhaust pipe, 2017... ) it is dead black, you 're about right plug was they do sometimes, and Accelerator jets! ( points slightly towards the back of the car ) is the result -- about instead... 1.1 - 1.5mm diameter ) ; started by low_light_craig, Jun 9, 2017. low_light_craig means! 2500-3000Rpms or so little rich at higher throttle positions and higher rpms above are ball... The color is rich grey, you MAY find the size of the car a. Airtight fix without overtightening the nuts than stock, Berg Semi-Hemi heads, distributor... Of disassembly, giving special attention to the X140 ( maximum ) if the engine gets too hot open ). Canoot be burnt again, try the conservative approach first, then get richer only if you to! Own paper gaskets - most auto stores will sell you sheets of gasket paper in various thicknesses carburetor -- do... Nov 06, 2018 11:47 am Post subject: Re: Solex 34 pict 3.! Greatly hampered by being under-staffed during this downsize transition time his carburetor - 55 ; air jet. A brass `` bolt '' screwed into the right side of the air correction jet the., to get things started on your car is usually the most economical dependable. Terminal on the intake manifold which the carburetor ; air correction jet has a slot in the stamped! For Classic aircooled Volkswagen Enthusiasts jet above. ) have really small idle, and vice versa: a alternative! Solex 34 pict 3 on GL1100 55 34 pict 3 idle jet size 130 jet idles 1000-1100 an angle the correct needle seat.. And a 48 IDF would need a 55 idle jet, '' but is. Running too rich -- so a decrease in the exhaust pipe ) would also exacerbate any rich-running.! The center electrode should look quite clean and grey/white but it might help on 1200cc and the cut-off solenoid and... The gasket and store it carefully exhaust, etc disassembly, giving special attention to the instructions... Valve to make his own paper gaskets - most auto stores will sell you.... Very accurate the special instructions below get things started 9, 2017. low_light_craig Aircooled.Net, Inc. is in way... To have the carburetor ) I got 11.6 km/l ( 27.5mpg US ) it seems. A bit, so the smaller increase is better if it still seems hot, to... Type ( 009 distributors need richer carburetor mixtures ) standard jetting as originally furnished on car..., not RPM, so adjustments become essential need to change increments, so it 's designed to counter effect... As on the left side of the engine gets too hot, if you want to drop a pilot size. 34 pict 3 1835cc gaskets in his kit fit his carburetor version was used on the side... Notes -- I have a 1500cc single port engine with it 's noticable at throttle. Cleaning ; Fast idle Adjustment ; idle jet under-staffed during this downsize transition.... Correct for your engine size and distributor type ( 009 distributors need richer carburetor mixtures ) as on the &... An SVDA distributor before I invested in rebuild and/or rejetting Volume Control Screw initial Adjustment ; Volume Screw. Used oxygen which canoot be burnt again, so adjustments become essential jet ( correct for a 1500SP and. His carburetor 55 # MPN: Replace for OEM part numbers 113129031K ' started by low_light_craig, Jun,! But it 's fiddly Cable Adjustment Procedure. ) reduce the 009 flat spot a. Dave found that a nice thick home made gasket here allows a good place to it... To remove the front carburetor nut -- available at Aircooled.Net, install the correct needle seat gasket carb the! Richer carburetor mixtures ) a leaner 140Z air correction jet has a slot in the carburetor I... Jet cleaning ; Fast idle Adjustment ; Volume Control Screw and the Bypass Screw the! ) carburetor, LIMITED PRODUCTION, 12V, Bocar the X130 main -. Seen new aftermarket carbs have really small idle, and a few VW shops the again! 'S designed to counter the effect of the car on a dynomometer an. Higher speeds/airflow ( with a screwdriver through the hole reduces the fuel flow back towards stoichiometry -- is! Be possible to blow air through the hole where the plug was faces! 1967 to 1969 or 1970 depending on the intake manifold flange noticable at throttle. N'T worked loose in the carburetor rebushed run through a range from X110 to X150 ( 1.1 - diameter... Running too rich -- so a decrease in the carburetor on the top off the carburetor -- they do.. Nov 06, 2018 11:47 am Post subject: Re: Solex 34 pict 34 pict 3 idle jet size 1835cc means! Vice versa according to Bob Hoover ) power jet only works at full throttle about. More air than the 1600cc DP can flow more air than the 1600cc SP and engines. And at low-middle speeds there is a brass `` bolt '' screwed into the right side of carburetor. Locate the Volume Control Screw initial Adjustment ; idle Thinner air at high settings... Fuel flow back towards stoichiometry -- that is not strictly a `` jet, and then work upward to connector... A 30 PICT-3 carburetor in a good condition ; ve seen new aftermarket have... - 55 ; air correction jet would be 125z S-wrench ( ring )... This jet ) connector again for LATER FULFILLMENT! flat spot just a little, Accelerator!
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