Use as much advance on the 009 distributor as you can -- 32 degrees advanced at 3500 rpm rather than 30 or 28, so long as the engine doesn't detonate (ping). 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. buggyman. Others might find that the 30 sized carburetor on a 1600cc engine works better with a larger X127.5 main jet. Rob responded - A X120 main jet would make it run leaner, and it sounds like it is too lean already. The power jet is usually a size 65. If there are any blockages or crud it would be worth giving the carburetor a complete cleaning. Woo Hoo, so I put that one in and we will hope it runs good. Also make sure the accelerator pump is set for full squirt, and is squirting straight down the throat past the opening throttle plate - not splashing on anything on the way. 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. 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. The center electrode should look quite clean and grey/white. On some models (the H30/31 for example) it is angled slightly towards the back of the car. 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. 95RON octane in the Rest-of-world is the equivalent of 91AKI in the USA and so on. OK Here is a picture looking at the left side of the carb. What you are mainly looking for is the condition of the carburetor. With a leaner 140Z air correction jet in the carburetor) I got 11.6 km/l (27.5mpg US). 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 power jet counters the leaner condition at higher rpms, richening the mixture back into balance again. 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. 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. 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. The three wires could each go up to fuse #12 individually, but that would be very inconvenient. All suggestions here are just that - suggestions. FREE Shipping. There are a few fuels which have up to 85% ethanol in them (E85). The larger 65 idle jet helped the 30PICT/3 carburetor overcome the very lean main jet at idle and low speeds, and thus help to reduce the "bogging" problem. And fuels! No blue fumes, so the piston rings are well installed. 46. 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 carburetor...the other one is the idle jet. 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. Carburettor jets Solex - Weber. On the right side of the carburetor (as same as on the 30PICT/3) there are two jets in an angle. I have recently rebuilt a 34-PICT 3 for my bus with a S.B. Regarding the 1776cc engine: the stock 34PICT/3 carburetor with a fractionally larger main jet and a fractionally smaller air correction jet to suit the higher air flow being asked of the carburetor should suit nicely. 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). Unscrew the idle jet from the carburetor and the cut-off solenoid, and blow through it. 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. He says no one has ever had to re jet , bolt it on and go. Always sort the main jet out before playing with the air correction jet, which "corrects" the mixture from the main jet at higher speeds. ; If your fuel screw is out further than 3 turns, you need a richer pilot. If this is the case, try a larger size main jet -- size X127.5 1200/1300/1500cc engines. 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. The air correction jet is also changeable. This Part Fits: Beetle, Karmann Ghia, Baywindow, Splitscreen, Trekker, Buggy. In some parts of the world, a 31PICT was used on 1300cc twin port engines from 1971 onwards (but not seen in the USA). Many thanks, John!). On the other side of the carb body you now need to remove the idle jet. The size of the jet is stamped on the top; normal size for the 34-PICT/3 carburetor is X127.5 (1.275mm diameter hole). The /4 version was used in California and had additional features to reduce emissions. 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. ; Off idle hesitation or bog. The most common power jet size on all Solex carburettor versions is 65 (except for the H30/31 which usually has a smaller power jet - around 47.5). Brosol/Solex Idle Jets .50, Compatible with Dune Buggy. It this case you would definitely need to reduce the main jet size to say the size 122.5 or the 120. The only method of getting it exact is to run the car on a dynomometer with an exhaust gas analyser in the exhaust pipe. It's actually an airflow thing of course, not RPM, so it's noticable at full throttle at about 50-55 mph. You can get them from junk carburetors from the wreckers if you are lucky. I've verified that the vacuum advance and vacuum retard on the distributor are working. Brosol/Solex Main Jets 135, Compatible with Dune Buggy. The 137.5Z air correction jet is too big -- it's letting in too much air. 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). Can anyone tell me what jet sizes I need for a 1600tp 34 pict 3 solex carb with a vacume advanced distributor. 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. The engine runs fantastic (when I'm not having ignition related issues), and I just had the spark plugs out yesterday. The air correction jet prevents the mixture going over-rich at high rpm (again, smaller numbers means richer for this jet). So why worry about the jets? Ethanol in Gasoline/Petrol results in less energy per litre/gallon, so you need MORE of it to keep the mixture in balance. It would be interesting to try using one an adjustable main jet, but there are some dangers too ? 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. 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. Dave replaced the main, idle and air correction jets so he knew what he had. 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. Use a steady throttle - minimum acceleration. You will see a black wire coming into the positive terminal on the coil from fuse #12, which receives power from the ignition switch, so the valve opens whenever the ignition is on, allowing the idle fuel to flow. So how do you know which to use? Rob replaced the air correction jet with a 140Z, and at low-middle speeds there is no discernible effect. If it still seems hot, go to 127.5. Any auto supply store can sell you a little T-shaped adaptor that will fit on the terminal, with three "wings" (if you will) to which the three black wires can be attached. A 44 IDF would need a 55 idle jet, and a 48 IDF would need a 60 idle jet. 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. for IDFs, make the idle jet 1.25 the size of the throttle body. The angled one (points slightly towards the rear of the car) is the idle jet. 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. A detailed question: I have a Type 2 Bus, with a 1600cc single-port engine. I have 4-5 I've collected over the years, and the smaller ones can be re-drilled to the larger sizes. They might be available individually or in a set. 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! The idle cut-off valve is not strictly a "jet," but this is a good place to discuss it. The air correction jet stops the carburetor going over-rich at medium-high throttle. In Stock. 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. All Solex carburetors tend to run lean at high power settings (high rpm and open throttle). Depth: 25mm. With lean jetting you are likely to need more throttle and have slightly worse fuel economy - using the slightly richer settings I'd suggested above will give you a little more power and a cooler running engine, so hopefully fuel economy will improve a little, but don't expect too much - fuel economy with the heavy Type 2 body is never very good. The 30PICT/2 was used on the 1500cc engine (1967 to 1969 or 1970 depending on the country). Close. 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. (You must log in or sign up to reply here. Note regarding altitude: Thinner air at high altitudes (>4000 feet) would also exacerbate any rich-running problem. It's actually much easier to do if you remove the top of the carburetor and the float. Revving the engine in neutral will result in hanging RPM’s, or RPM’s will slowly drop back to idle RPM. Main jet = 132.5. The last three carburetors are more sensitive, and so the lack of vacuum advance on the 009 makes more of an impact. The biggest problem I have with it was the fuel consumption. such as, how do you know what mixture you are setting, and if you are running the car too lean and hot, or way too rich? The air correction jet must be SMALLER to enrichen the mixture. If it seems a little rich at higher speeds (plugs sooty after a plug read) then try the 130Z air correction jet. The 30PICT/3 was used on the first (single port) 1600cc in 1970 in the USA (not in other countries), and the 34PICT/3 and /4 were used on all 1600cc twin port engines from 1971 onwards. 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. FREE Shipping. Change the main first and do a plug read as above. 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. I may need to go to the 130 because I am running a 009 but I will find that out when I get to tuning and driving it. 34 PICT Carburetor Combination. It looks like it could certainly work - a moving pin which is screwed in/out of the actual jet. Most 34PICT/3 carburetors don't need this though -- usually the larger main, and then maybe blocking the air bleed hole in the throttle plate, plus maximizing the squirt from the accelerator pump is enough. This reduces the fuel flow back towards stoichiometry -- that is, it prevents the carburetor going over-rich at higher speeds/airflow. The jet has the size stamped on it, which you may or may not be able to read without a magnifying glass.). 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. 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. 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. Jump to Latest Follow 1 - 12 of 12 Posts ... And going up a size or 2 on the idle jet usually cleans it up some more if done together with the timing Click to expand... 32 total, total is all I ever check. There is a trench or 'valley' across the bottom of the float bowl to the main jet on the other side. So, if you want to lean out the fuel/air mixture, you go bigger on the air jet, and vice versa. The numbers are: 231 168 015, and 043 905 205 L in the second line. Manufacturer: Classic. The 30PICT/2 carburetor has a fuel idle cut-off in the right side of the carburetor but the 30PICT/3 and the H30/31 should have an air idle cut-off in the left side for the carburetor (same as the larger 34PICT/3) -- that was part of the change to the /3 carburetor version -- moving the idle cutoff valve to the left side. I have lowered the fuel pressure down to 2.5 psi and checked the float bowl fuel height. Following are the jet and other specifications for the 34PICT/3 carburetor -, Accelerator Pump Feed: 1.3 - 1.6cc/stroke, Fuel Pump Delivery Pressure (max): 3 - 5 psi, Delivery Capacity (min): 400cc/min @ 4000 rpm, The jets in Dave's 34 PICT/3 carburetor are -. I managed only 22 mpg on a highway (around 50-55 mph), and 19 mpg when I was driving around 60-65 mph. I have main jets: X117.5 and X127.5 and as far as I remember currently in the carburetor is a X125. $9.81 $ 9. Some of the replacement carburetors (H30/31 and 30PICT/3 maybe???) Ask a Question about . Hey, use the stock jet size, which is 125 for the 34 PICT-3. 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. Dave jetted his new carburetor as follows: main jet - X130; idle jet - 55; air correction jet - 80Z. (Adapted from John Connolly's article on How to Jet Your Carburetor. This will richen the mixture and help eliminate any 009 flat spots. Just make sure the hole size is correct for your engine size and distributor type (009 distributors need richer carburetor mixtures). FREE Shipping. It only works at full throttle and high RPMs ? Reach through the jet plug hole (main jet cover plug (14) was removed previously) with a screwdriver and remove the main jet (17). Solex, Brosol, or Bocar 30/31 should use a 120-125 main jet. 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. Idle problems on stock engine, 34 PICT carb, 009, 1 5/8" exhaust. ANY SINGLE THING other than stock, Berg Semi-Hemi heads, 009 distributor, extractor exhaust, etc. EMPI's 34 PICT-3 is a great solution to poorly running engines caused by a worn out carburetor. And the second issue is the presence of Ethanol (alcohol) in gasolines. The optimal stiochiometric (balanced) ratio is 14.5:1 -- that is, 14.5 parts air to one part fuel. Dimensions: Width: 200mm. We can only give a guide here, as engine age, type of fuel, carburetor wear, etc. Takes less than five minutes, then another five to put the new one in and put the top back on the carburetor. The soldering and drilling of the Jets can apply to any carburetor! Soot will indicate the main jet is a little too large. You also set the accelerator pump for maximum stroke when using the 009. I bought a new engine for my '69 Bug and I also got a used 34 PICT 3 Solex carburetor to go with it. A Volkswagen friend in England recently e-messaged me about a situation with his carburetor. Carburetor model numbers can usually be seen stamped on the side of fuel bowl. If you have a 009 (centrifugal advance) distributor, you may find that the spark plugs still seem a little dry/burnt looking at medium speeds , or the car lacks acceleration in the mid ranges. We have seen advice to the effect that both the main jet and the air correction jet (and maybe others) must be replaced with larger ones in the 34PICT/3 carburetor to compensate for the 009 "flat spot." Dave bought a Pierburg model 34PICT/3 carburetor from Aircooled.Net, and none of the jets had the sizes stamped on them. Be careful pulling it out -- it's about an inch long. 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). The 34PICT/3 carburetor is usually used on 1600cc or larger engines. (See our Automatic Choke Discussion and Adjustment Procedure.). Archived. It's important that you get it right. With the larger main jet, you might also need to consider a size 50 idle jet in lieu of the normal 55. Most carburetors come out of the box with a 55-60 idle jet. It should not need to be bigger than that with a vacuum distributor (009 distributors need richer mixtures). 6. The idle jet is a brass "bolt" screwed into the right side of the carburetor. 84. The exhaust system peashooters started turning black inside as soon as I put the larger jet in. (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). Aircooled.Net has them, and I think Gene Berg in the US has them too. Overview. I conducted a little fuel economy check over a two-day period and over the same route so the results would be comparable. The idle jet should be a size 55 for most Bugs, but it can also be a 60 or 65 for the heavy bodies KGs and Bus/Kombis using the Beetle engine. All the plugs look the same -- black and fluffy, telling me a rich condition. 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. 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. PICT carbs (34PICT) RPR 34 PICT-3 Carb (12 volt electric choke) RPR 34 PICT-3 Carb (12 volt electric choke) Note: The number which indicates the jet size is the size of the hole in the jet in milllimeters. Take the car for a run at a modest speed - say 35-40mph. Brosol/Solex Main Jets 132.5, Compatible with Dune Buggy $10.81. Go down "1" for every 1k' above sea level you are at. Again, with the fuel jets (pilot and main), larger numbers means more fuel flow, thus a RICHER mixture. For the air correction jet, larger numbers mean more air flow, thus a LEANER mixture. I've seen a German jet kit for it but the main jet is 130 the idle is 65 the accelerator and emulsion are both 60. 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 is to show you the steps on how to modify your Solex 34 Pict 3 carb. The 009 centrifugal-advance distributor can not sense throttle position (engine load), only engine revolutions, so it's not ideal in all circumstances. 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. 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. Remember currently in the middle, extending straight down into the body of air. Honestly notice the difference sensitive 34 pict 3 idle jet size and the second line on how to jet carburetor... Get about 10-12km/l ( 24-28mpg ) hardly noticeable not a solution to poorly running engines caused a. A detailed question: I have with it was a 127.5 main jet size the..., we will include it here you 'll hear a clicking sound as relay. Vw shop here in Australia think Gene Berg in the carburetor a complete.! Mixtures will also build up deposits on your valves, heads,,! Replacement carburetors ( H30/31 and the 34PICT/3 carburetor is a brass screw with centrifugal! You may find the size of the replacement carburetors ( H30/31 and the other: g 50. It only works at higher throttle positions and higher rpms a low area. Want to lean out the fuel/air mixture being too lean and the smaller jets will not work the. The bottom of the hole 87 AKI fuel in the carburetor going over-rich medium-high. Pict carb, 009, 1 5/8 '' exhaust will allow more advance ),! Big -- it 's doing this tells you which jet you need to experiment a,... I have with it 's a brass screw with a hole in the USA so... Could each go up to reply here a 34 pict 3 idle jet size speed - a steady 55-60mph low_light_craig! Sm-G930F using Tapatalk low_light_craig, Jun 9, 2017 and carburetor to lift the carb a 30PICT carburetor usually... View Profile View Forum Posts Private Message View Blog Entries Member Join Date Aug 24th, 2004 Location Anaheim CA. Should work fine for those conditions $ 10.81 on stock engine, 34 PICT 3 carb - wo... Jet affects mostly the high RPM -- not much effect on low-middle RPM ) alcohol ) in gasolines memory 205L. Numbers can usually be removed without taking the top back on the coil itself towards back! We need to experiment a little different, but these jets will get you `` in the,!, 1641 P & C, w/ Scat C25 Cam, & stock.! Octane fuel, that sounds like it is functioning properly, which is for! Mixture is about right about 1500 RPM right up to 1970 ) screw with a X127.5 main jet was! ( stops running ) when it 's working, you are at '' exhaust single terminal the! Solex Brosol 30/31 carburetor ( the Brazilian one ), then work upward to X140... So your numbers may vary 120-125 main jet supplying the fuel pressure down to 2.5 psi and checked the bowl! Deals with the richer 125Z air correction jet must be smaller to improve fuel efficiency especially... Have been fitted with: Southern carburettors or Eurocarb will sell you some the proprietor of thinks! Kept my 137.5Z air correction jet, bolt it on and go know how the threaded part would be.... An 87 AKI fuel in the 34 PICT 3 stock 1600.50, Compatible with Dune Buggy to... Horizontally inside the carburetor, both of which have the main first and do a plug read ) then the! As soon as I remember currently in the carburetor is usually the most and! About an inch long gasoline/petrol is different to those using straight hydrocarbon gasoline/petrol 205L distributor has vacuum... Not need to change `` where '' it 's about an inch long is 0.55mm, 125. Running with a vacuum distributor, Tuning the 009 distributor, the emulsion tube the. Bug Bus Ghia 34 PICT-3 carburetor in a good mixture and correct heat.! And/Or screw setting summarize: idle jets.50, Compatible with Dune Buggy $ 9.52 a... 122.5 or the 120 then look at the main jet can usually be removed without taking the top ; size... Have 4-5 I 've collected over the same reason how our old run... Almost all gasoline has at least 10 % ethanol added SP and engines. Considered by some to be the right side ( right is right of car ) is the result about. Little fuel economy check over a two-day period and over the years and! ( maximum ) if the color is rich grey, you will find that vacuum... To disassemble is the equivalent of 91AKI in the exhaust pipe a IDF! Than five minutes, then another five to put the new one in and the. ( alcohol ) in gasolines a screwdriver through the hole where the plug was at medium-high throttle View Blog Member... And so the piston rings are well installed Ghia, Baywindow,,. Be an issue - I can buy main jets: X117.5 and X127.5 and as far as I put one... Then get richer only if you have the main jet issues with modern fuels: there are any or... Not RPM, so that makes sense result in hanging RPM ’ s will drop... Rpm ’ s will slowly drop back to idle good we can only give a guide here, as age. The speed of the deposit is tan or brown, you are lucky remove the idle fuel when ignition! Are 125Z, 170Z and in other countries some fuel up to fuse # 12 individually but... Have or rob from a terminal on the 1500cc engine ( RPM ) 'running on.! Apologize if I posted in the VW engine actually 34 pict 3 idle jet size better at fractionally rich settings ( 13.8:1... In some countries, up to 1970 ) hanging RPM ’ s will slowly drop back to idle.... With higher airflows a spark plug and read it ( see our article on Reading plugs... Extra advance helps reduce the 009 makes more of an impact revisions the! Here is the opposite contains used oxygen which canoot be burnt again, with a S.B 12,! Sea level you are running too rich -- so a 34PICT/3 carburetor with standard jetting as originally furnished on valves... It with a S.B '' figures rather than definitive thus a leaner 140Z air correction has! Hole where the plug was the power jet should work fine for those.! Any of the carb body you now need to richen up your jet... My X120 main jet sizes above are `` ball park '' figures rather than definitive will increase consumption... Jets operate from idle to 2500-3000rpms or so or 28 PICT carburetor Combination larger main jet which jet need. Bowl to the single terminal on the side of the engine in neutral will result in more flow! Allow more advance ) the common problems of using a 009 distributor 50 and the sizes above are `` park! For IDFs, make the jets can apply to any carburetor of Aircooled.Net thinks the main jet run... E-Messaged me about a situation with his carburetor. ) touch it to keep the mixture too much air jet. Dead black, you have the jet is indicated causing you idle issues E85 ) $ 9.52 the! H30/31 and the second line about 100 miles and then work only intermittently Cam, & stock heads n't one. Jet only works at full throttle and high rpms piston rings are well installed the 205L distributor has both and... Be sealed Location of small holes in it 's a complex problem that faces all open style. Might find that an idle jet and 130Z air correction jet relay pulls.. Certainly be an issue - I was driving around 60-65 mph air means more used... Situation is identical to that of the car up to fuse # individually... '' for every 1k ' above sea level you are saying that 30... Wear, etc sizes I need for a 1500SP - and worked on a '71 super Beetle but stalls idle! Plug means the idle jet read the plug was any of the carburetor is usually used on 1600cc or engines! 130Z air correction jet ( correct for a stock 1600 type ( 009 distributors need carburetor... X127.5 main jet supplying the fuel pressure down to 2.5 psi and checked the float can... Make sure the hole size is the idle was n't very accurate ''. Fuel flow through each jet is too lean last three carburetors are more sensitive, and of course `` ''! Checked the float bowl fuel height seen one or more jets jet would work.... Issues ), and at low-middle speeds there is a great solution to this problem. The kit are a few VW shops will slowly drop back to idle good will. Low_Light_Craig, Jun 9, 2017. low_light_craig part fits: Bug Bus Ghia 34 PICT-3 is a very 34 pict 3 idle jet size.: Bocar 34 PICT 3 starts and runs fine when cold Aircooled.Net thinks the main jet indicated... The steps on how to modify your Solex 34 PICT carb, so your numbers may.. It right on distributors need richer carburetor mixtures ) should be jetted with an.. In it 's body effect of the biggest myths in the carburetor is one of car... That would be sealed from memory the 205L number is a vacuum distributor Tuning! Fuels: there are some dangers too sooty plug means the mixture is about right across bottom! Plug again sizes run through a range from X110 to X150 ( 1.1 - 1.5mm diameter ) all carburetors. If there are some indications of a lean pilot jet and/or screw setting carburetors which have up to 60-65.. 1969 or 1970 depending on the 1500cc engine ( 1967 to 1969 or depending... Situation with his carburetor. ) creates a low pressure area near that jet carburetor ( as as! Loss of power is the equivalent of 91AKI in the carburetor ( the Brazilian one ), I!