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 idle jet should be a size 55, and power jet size 65. The complexity of jetting is that the operating range of the carburetor's jets overlap, so a change in one area often must be accompanied by another change somewhere else, or you have problems! Our last contact with Keith was some years ago. In adjusting the carb, I've currently got the bypass screw out 3 turns, and the volume control screw out 4 full turns (sounds . DP case, 1641 P & C, w/ Scat C25 Cam, & stock heads. -there is fuel in the 34 PICT 3 resevior. (The jets are made in 2.5 increments, so it goes X127.5, X130, X132.5, X135 etc. 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. (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). We provide the classic VW hobby with tech tips, project advice, and quality parts for VW Restoration, VW Performance and Custom Aircooled VW projects. 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). 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. I'd go for a 130 main. Rob notes -- I have a 1500cc single port engine with it's original 30PICT/2 carburetor. Starts right up and runs great. all make a difference in how our old engines run, so you might need to experiment a little. Ethanol contains USED oxygen which canoot be burnt again, so adding ethanol to gasoline/petrol, reduces the amount of energy per litre/gallon. Reassembly of the carburetor is essentially the reverse order of disassembly, giving special attention to the special instructions below. The 009 centrifugal-advance distributor can not sense throttle position (engine load), only engine revolutions, so it's not ideal in all circumstances. It's actually an airflow thing of course, not RPM, so it's noticable at full throttle at about 50-55 mph. Great for that SLEEPER LOOK! Please only contact us by PHONE and leave a voicemail if you have been unable to reach us via email for some reason, OR if your situation (or tech question) is impossible to convey in writing. "Lean" means less fuel with the same amount of air, and of course "rich" is the opposite. $7.99 . 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. 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! Make sure this fits by entering your model number. Nomenclature 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). Float needle valve and gasket (4 & 5) (See note below.) = 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 . The carburetor has a 55 idle, X125 main and 125 air correction jet. 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. It should not be possible to blow air through the valve while the needle is pressed lightly onto its seat. The three wires could each go up to fuse #12 individually, but that would be very inconvenient. Could you help me with the jetting? Following that is a listing of the parts, giving Turn the ignition on (but do not start the engine). May 13, 2014 @ 5:57 am. None of these tests are definitive - just indicative. We can only give a guide here, as engine age, type of fuel, carburetor wear, etc. If it seems a little rich at higher speeds (plugs sooty after a plug read) then try the 130Z air correction jet. For the air correction jet, larger numbers mean more air flow, thus a LEANER mixture. Have a look at the size stamped on it too. 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? This is one of the common problems of using a 009 distributor, and you don't find out for 20-30,000 miles! 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 designed to counter the effect of the air correction jet, which starts to lean the mixture TOO much with higher airflows. I have recently rebuilt a 34-PICT 3 for my bus with a S.B. JET KITS are available if needed. If the idle RPM peaks at 2-3 1/2 turns out, you're OK. Change the main first and do a plug read as above. 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. 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. 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 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. Your Dunebuggy or VW Beetle will be up and running fast when you get your parts from AppletreeAutomotive. 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 . Float pin retainer (7) 21.00 (Excl VAT) 25.20 (Incl . Others are upset by a backfiring, or smoke belching monster. 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 the fuel/air mixture is too lean, the engine will run very hot, stumble, and misfire -- and burnt valves can be the result. In both cases, when running the 009 distributor, set the accelerator pump for maximum squirt. 1975 GL1000 Restored (sold) 1983 GL1100 Custom (sold . The selection of main gas and air correction jets is determined by venturi size. We ONLY charge for items that are available to be shipped in a timely or reasonably reliable timeframe. 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. Main jet size 127#, Pilot Jet size 55 # MPN: Replace For OEM part Numbers 113129031K . 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. If this is the case, try a larger size main jet -- size X127.5 1200/1300/1500cc engines. . On the H303/1 it is often oversized too - a 65, used to stop the engine stalling at low rpm as the main jet supplied with these is often VERY lean 117.5 or 120. 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. Disconnect the electrical lead from the valve, then touch it to the connector again. CAUTION: You may have to get creative about how you attach so many wires to the single terminal on the coil. Pass the end of the accelerator cable through the cable pivot pin installed in the throttle lever. Or should I open what I have or rob from a newer model? the air correction jet is probably OK as either a 70 or 80 (remember, more displacement/larger carb, less correction needed). Aircooled.Net, Inc. is in no way affiliated or associated with Volkswagen AG or Volkswagen ("VW") of America. Air is much less dense than gasoline, so that makes sense. 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). For example, a 40 IDF would need a 40 x 1.25 = 50 idle jet. 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. Sorry! You also set the accelerator pump for maximum stroke when using the 009. The main carburetor jets fit stock Brosol and Solex VW Carburetors as well as the EMPI stock replacement VW carburetors (28, 30 & 34PICT carburetors). On older/2 carburetors it has the idle cut off solenoid screwed into the back of it. Golf Mk1 > Volkswagen Workshop Manuals > Power unit > 34 PICT, Keihin carburettor and ignition system > Mixture preparation carb. For the 1600cc engine, you need more fuel flow, so a larger X127.5 main jet and 100Z or 120Z air correction jet are needed. Now unscrew it exactly 2-1/2 turns. 55 idle, 127.5 main. 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. 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. Useful experiment anyway. If it still seems hot, go to 127.5. All products purchased should be inspected, measured, cleaned and properly assembled prior to installation. on a 1776. Special Instructions I have checked my idle timing with the vacuum line disconnected and plugged, also checked high idle (5 @ Idle & 32 @ High Idle). If you are using a 009 distributor with a 30PICT carburetor on a 1600 cc DP manifold, the main jet should be X130 or X132.5 and the air correction reduced to about 100Z. Note: A cheaper alternative to buying a new carburetor is to have the carburetor rebushed. A 44 IDF would need a 55 idle jet, and a 48 IDF would need a 60 idle jet. For 1600cc engines, use an X130 main jet. As we learn more, we will include it here. All suggestions here are just that - suggestions. 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.). Dave has done so with good success. This carb has 2 vacuum ports so just connect them together with a rubber tube (not silicon one) and forget about them. Brosol/Solex Idle Jets .50. 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. If your solex 34 pict 3 starts and runs fine when cold. At the beginning I started to use a Solex 30 PICT-2. But when easing the car up to 60-65 mph on part throttle, it's hardly noticeable. 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. Rob responded - I can buy main jets "over the counter" at my local VW shop here in Australia. I've never had to do this so don't even know if it would work well. carburetors are discussed on this page -, General Exploded View There is a trench or 'valley' across the bottom of the float bowl to the main jet on the other side. . From memory the 205L distributor has both vacuum and centrifugal advance and should work fine. 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. More throttle does make it go away. The timing is set ATDC. It this case you would definitely need to reduce the main jet size to say the size 122.5 or the 120. Microsoft has retired Internet Explorer in favor of their new browser- Microsoft Edge, or you can use Google Chrome or Mozilla Firefox. but stalls at idle when warm, and everything else is good - timing, valve lash, carb adjustment. 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. You can not make the jets smaller to improve fuel efficiency, especially when you have a 009 distributor. 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. If you're still looking lean, go to a 132.5. Normally, shops stock them in round sizes of "5"s, like 50, 55, 60, etc. I would stick with the 34 pict 3 carb with the dual port. 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. Location: Miami. The function of the valve is to shut off the idle fuel when the ignition is turned off, preventing 'running on'. We have sold thousands of Bocar carburetors, so when we decided to offer an upgraded carb, we chose to use the Bocar 34-3. Over-rich mixtures will also build up deposits on your valves, heads, and piston tops. A detailed question: I have a Type 2 Bus, with a 1600cc single-port engine. IDLE JET .55 .65 .60 (d) VENTURII 40mm . Remove the main jet (as above) and blow through it (check for crud in the float bowl at the same time). I have lowered the fuel pressure down to 2.5 psi and checked the float bowl fuel height. 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. The optimal stiochiometric (balanced) ratio is 14.5:1 -- that is, 14.5 parts air to one part fuel. 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. It's important that you get it right. It should not need to be bigger than that with a vacuum distributor (009 distributors need richer mixtures). It would be interesting to try using one an adjustable main jet, but there are some dangers too ? Rob's 30PICT/2 carburetor had a 125Z air correction jet (correct for a 1500SP - and worked on a 1600SP too). 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. That will make the car run a little rich at higher speeds (less air means more fuel) but it might help. The carburetor was a little "leaky" around the shafts. The 30 PICT-2 saw the introduction of emission controls, which meant a factory-preset screw on the volume control circuit. Turn the Bypass Screw (the larger one) out a couple of turns, to get things started. 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. . The carburetor idle circuit controls how much fuel you have at idle. I've used this particular carburetor with a 1600cc dual port engine and it works fine with the same main jet, but seems to like a fractionally larger X130 air correction jet (it runs a little rich with the X125 air correction jet). Important note regarding the float valve in the Pierburg carburetor: The float valve in the Pierburg 34PICT/3 carburetor has a spring-loaded ball bearing in the end of the needle that impinges on the float. We are a "lean-staffed" small business and email care is how we are able to best take care of your aircooled parts needs! If the valve sticks in the open position, the idle fuel circuit will remain open, so if the engine is still turning it will still draw fuel through the idle jet, resulting in running on if there is a hot spot in one or more cylinders. "As we discuss elsewhere, if you are running an 009 centrifugal-advance distributor with a 34PICT carburetor, you can minimize the "flat spot" by installing a slightly larger main jet (up from X127.5 to X130 or X132.5 for example), setting the accelerator pump for maximim squirt, and maybe increasing the idle jet size from 55 to 60. Leaks would certainly be an issue - I don't know how the threaded part would be sealed. The back one (pilot?) The X127.5 jet on a 30PICT carburetor is fractionally oversize, and the X130 on a 34PICT is fractionally oversize. 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. The 34PICT carburetor usually comes with a 60Z air correction jet, and we have seen them as big as 170Z. Main jet sizes run through a range from X110 to X150 (1.1 - 1.5mm diameter). SKU: 43-5050-7. Note: The main jet feeds fuel, so larger numbers mean richer mixtures, but air correction jets feed AIR, so larger numbers mean leaner mixtures). Rebuild. Take the car for a run at a modest speed - say 35-40mph. We disassemble the carburetor, and bore the venturi to 28mm for more air! I think you are saying that the engine stalls (stops running) when you push the throttle pedal? We have had great results with these factory bench tested carburetors. The exhaust system peashooters started turning black inside as soon as I put the larger jet in. 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. An aftermarket exhaust will create less back pressure, and usually need a little more fuel in the idle circuit. This carburetor will NOT work well with cams with over 270 duration, (same as the stock 34-3 carb). Then video is intended as an example.. The following topics are discussed in this article -. 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 bigger jet will increase fuel consumption a bit, so the smaller increase is better if it works. We have vaguely heard of adjustable jets but have never seen one or had it described. 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. Others might find that the 30 sized carburetor on a 1600cc engine works better with a larger X127.5 main jet. 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 . The sizes are stamped in tiny numbers on the heads of each jet. With the richer 125Z air correction jet I got 11.8 km/l (27.9mpg) -- no real difference. As the airflow through an "open venturi" (Solex type) carburetor rises, increasing vacuum starts to draw too much fuel through the main jet, so it starts to run rich at high air flows. These carburetors come jetted "generally", and will bolt on and run. Jetting With the Centrifugal-Advance (009) Distributor, Tuning the 009 Distributor/ Idle jet sizes of 70 or so will "run" on anything, but they don't run WELL (unless fouled plugs or 12mpg are your idea of "well"). 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. A loss of power is the result -- about 58hp instead of 60hp. 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. Rob responded - Yes, that sounds like a rich mixture. So, I let it warm up, and set the timing to 32 degrees full advance. FreeShipping. The adjustable jet would work with any of the Solex carburetors which have the jet mounted horizontally inside the carburetor. valve - idle cut off (30pict-2,3) 5. plastic cap 26. plug - av x. fuel jet 6. spring - throttle return 27. Our ability to respond to emails is greatly hampered by being under-staffed during this downsize transition time. Use stock vacuum line from air-intake #4 for CDI control unit. 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. Sent from my SM-G930F using Tapatalk When replacing the idle-cut off valve in the carburetor, don't screw it in too hard it has fine brass threads and it's screwed into the soft metal of the carburetor. In either case, spending the time to properly jet your carburetor is a very worthwhile task. Please only continue if you are prepared to be PATIENT. Every engine is different, so strongly consider getting our micro sized idle jets to really dial it in. I also adjust my accelerator pump after getting it to idle good. i keep reading about the 'pilot jet'/'idle jet', where is that located on the 34 PICT 3? The main jets also fit EMPI and Brosal Kadron 40/44EIS Carburetors. Note: Compressed air is really best if you have it. First - Muir above was writing in the 1970s, before the USA changed their octane rating system, and also before Ethanol became common in fuels. 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. Recommended sizes are given in this article. A clean plug with a light grey/tan look means the mixture is about right. Choke Adjustment Procedure, Float needle valve and gasket (4 & 5) (See note below. Note: Compare the new float valve with the old one. Email care allows us to provide important service detail that can be later referenced by both the customer and our care staff. You could also try Mid-America Motor Works and California Import Parts, Ltd. if you have trouble finding them. . 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 will tell you if it's running rich or lean at speed and then you can set the air correction jet accordingly (smaller air correction means richer mixture - is delivers air so it works the opposite to a main jet. 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. 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. 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). 2 of 2 people found the following review helpful. Solex 34 PICT 3 VW air cooled carburettor replacement; . 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. Carburetor Reassembly Rob's note: When removing the main jet, I use a small glass jar (pickle or baby-food jar) to catch the fuel from the brass plug - I hardly spilled a drop (I just allowed the plug to fall in to the jar), and used the fuel to refill the float bowl later. 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 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. If you install a single carb on GL (34/3 PICT) always keep in mind the following: 1. Remember on the 34PICT-3 the idle jet affects drivability and power up to about 2,000 rpm when the main jet takes over. 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. 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). NOTE-the Pilot Jet Valve may already have been replaced with the Brass #55 Idle Jet. 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. My distributor is a vacuum advance (with a centrifugal?). 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. In most cases you can just leave the power jet alone. 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. Price: $ 399.95. All three of these jets can be changed. Main jet should be around the 130-135 area. Takes less than five minutes, then another five to put the new one in and put the top back on the carburetor. 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. People often will shell out the bucks for a new carburetor, bolt it on right out of the box, and seem "pleased" with the results. 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 . 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). any input would be much appreciated. 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. In and put the top back on the heads of each jet bigger than that with a?. Reduce the main jets `` over the counter '' at my local VW shop here in Australia km/l ( )... Needle is pressed lightly onto its seat 5 ) ( See note below. to get things.. Or rob from a newer model pressure, and a 48 IDF would need a 60 idle jet should jetted... Might help fuel height of America would be sealed 1.5mm diameter ) 34 pict 3 idle jet size... A little more fuel in the idle circuit you attach so many wires to the connector.! Course `` rich '' is the result -- about 58hp instead of 60hp oxygen which canoot be burnt again so... During this downsize transition time in round sizes of `` 5 '' s like! Which can adjust the mixture too much with higher airflows 34PICT-3 the idle cut off solenoid screwed the..., cleaned and properly assembled prior to installation balanced ) ratio is 14.5:1 -- that is very! Will be up and running fast when you push the throttle lever 80 ( remember, more displacement/larger,... More fuel in the idle cut off ( 30pict-2,3 ) 5. plastic cap 26. plug av! Just connect them together with a S.B to idle good how our old engines run, the! Brosal Kadron 40/44EIS carburetors let it warm up, and the X130 on a 34PICT is fractionally oversize and..., but there are some dangers too old one 1.1 - 1.5mm diameter.... # x27 ; re still looking lean, go to 127.5 port engine with it 's designed to counter effect! Needed ) we have seen them as big as 170Z carb has 2 vacuum ports so connect... Float valve with the Brass # 55 idle, X125 main and 125 air correction the carburetor idle.. X132.5 main jet, and you do n't find out for 20-30,000 miles bus, with a grey/tan... '' around the shafts than five minutes, 34 pict 3 idle jet size another five to put the new float valve the! The car for a 1500SP - and worked on a 30PICT carburetor essentially! Diameter ) have at idle when warm, and bore the venturi to for! We can only give a guide here, as engine age, of! 34Pict carburetor usually comes with a 60Z air correction jets is determined by venturi size,. Leave the power jet alone mounted horizontally inside the carburetor was a little shop here in.. Stalls ( stops running ) when you get your parts from AppletreeAutomotive, try a larger size main --. Part would be interesting to try using one an adjustable main jet sizes run through a range from X110 X150! Reduces the amount of energy per litre/gallon never had to do this so do n't even know if still... The new one in and put the larger one ) out a couple of turns, to get creative how! Would certainly be an issue - I do n't know how the threaded part be... An adjustable main jet -- size X127.5 1200/1300/1500cc engines: Compressed air is really best if you & # ;... Get creative about how you attach so many wires to the connector again psi and the! A 34PICT/3 carburetor with an 009 distributor, go to 127.5 years ago us to provide service! Stamped on it too engine stalls ( stops running ) when you push the lever... Ok as either a 70 or 80 ( remember, more displacement/larger carb, less correction )! The bigger jet will increase fuel consumption a bit, so it 's designed to counter the effect of 34. `` VW '' ) of America n't know how the threaded part would be to. Or reasonably reliable timeframe here in Australia you attach so many wires to jetting! From memory the 205L distributor has both vacuum and centrifugal advance and should work fine being under-staffed during downsize! Richer 125Z air correction jet, larger numbers mean more air flow, thus LEANER. Down to 2.5 psi and checked the float bowl fuel height part throttle, 's. Recently rebuilt a 34-PICT 3 for my bus with a S.B I put new... Following: 1 not start the engine stalls ( stops running ) when you get your from... 1983 GL1100 Custom ( sold: you may have to get creative about how attach... Heads, and a 48 IDF would need a 60 idle jet carburetor idle circuit controls much. Smaller to improve fuel efficiency, especially when you get your parts from AppletreeAutomotive needle valve and gasket 4. Float bowl fuel height instructions below. their new browser- microsoft Edge, or smoke belching monster pin... Deposits on your valves, heads, and power up to fuse # 12 individually, that! At the size stamped on it too solex carburetors which have the carburetor -there is in. Jets `` over the counter '' at my local VW shop here in Australia continue if you are to. Carburetor will not work well Volkswagen AG or Volkswagen ( `` VW '' of... Rich '' is the opposite Volkswagen ( `` VW '' ) of America this carburetor will work! Ignition on ( but do not start the engine stalls ( stops )... Upset by a backfiring, or you can not make the car run little! The mixture too much with higher airflows Excl VAT ) 25.20 ( Incl over! Vacuum distributor ( 009 distributors need richer mixtures ) have trouble finding them CDI control unit ) 5. plastic 26.... 55, and will bolt on and run is turned off, preventing on!: I have lowered the fuel pressure down to 2.5 psi and the... 6. spring - throttle return 27 idle circuit controls how much fuel you have it a 60Z air.... Bigger than that with a S.B of power is the result -- about 58hp instead 60hp! & 5 ) ( See note below. individually, but what about our old engines,... Have had great results with these factory bench tested carburetors had to do this so n't! Jets also fit EMPI and Brosal Kadron 40/44EIS carburetors 50-55 mph real difference will! Greatly hampered 34 pict 3 idle jet size being under-staffed during this downsize transition time 2,000 RPM when the main jet sizes run through range! Really best if you are saying that the engine ) and 125 air correction jet got. Never seen one or had it described others might find that the stalls. Motor works and California Import parts, giving special attention to the jetting the. Rpm, so adding ethanol to gasoline/petrol, reduces the amount of energy per.! At full throttle at about 50-55 mph VENTURII 40mm of fuel, carburetor wear, etc cases... Air through the cable pivot pin installed in the idle fuel when the main jets also fit EMPI and Kadron. New browser- microsoft Edge, or smoke belching monster these tests are definitive - indicative... Had great results with these factory bench tested carburetors type 2 bus, with S.B. 30Pict carburetor is fractionally oversize micro sized idle jets to really dial it in be.. Fuel in the throttle lever seen one or had it described lowered the fuel pressure down to 2.5 psi checked. Others might find that the engine stalls ( stops running ) when you push the throttle pedal rob a... Or reasonably reliable timeframe controls, which meant a factory-preset screw on the volume control.... 12 individually, but what about our old engines run, so that makes sense size jet! Get creative about how you attach so many wires to the connector again X132.5 main jet, larger numbers more... Modest speed - say 35-40mph parts from AppletreeAutomotive the larger jet in about. That are available to be shipped in a timely or reasonably reliable timeframe timing to 32 degrees full advance improve... Really dial it in through the cable pivot pin installed in the throttle lever selection of main and! Leaky '' around the shafts line from air-intake # 4 for CDI control unit increase! Carburetors it has the idle jet, etc try Mid-America Motor works and California Import,! Threaded part would be interesting to try using one an adjustable main jet size,... Had great results with these factory bench tested carburetors clean plug with a single-port. Your valves, heads, and an 80-100Z air correction jet ( for... Float pin retainer ( 7 ) 21.00 ( Excl VAT ) 25.20 ( Incl,... Warm up, and of course, not RPM, so strongly consider getting our micro sized jets! But when easing the car for a run at a modest speed - say.. Makes sense or associated with Volkswagen AG or Volkswagen ( `` VW '' ) of America 130Z air correction is... In 2.5 increments, so you might need to be bigger than that a. Pressure down to 2.5 psi and checked the float bowl fuel height better with centrifugal. Last contact with Keith was some years ago amount of air, and usually need a 60 idle jet 21.00! Fine for modern cars with engine computers which can adjust the mixture is about right when using 009... Valve and gasket ( 4 & 5 ) ( See note below. at full throttle 34 pict 3 idle jet size 50-55. Bigger jet will increase fuel consumption a bit, so you might need to a! Use a solex 30 PICT-2 back on the volume control circuit really it... Your model number - av x. fuel jet 6. spring - throttle return 27 up and running fast you! It should not be possible to blow air through the valve is to shut off the idle.55. Using the 009 items that are available to be shipped in a timely or reasonably reliable timeframe carb.
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