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 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. 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). 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. It is very easy to check the idle cut-off valve to make sure it is functioning properly. Jetting With the Centrifugal-Advance (009) Distributor, Tuning the 009 Distributor/ See details. Location: Miami. We disassemble the carburetor, and bore the venturi to 28mm for more air! Note the three black wires leading from the positive terminal on the coil -- one to the backup lights, one to the automatic choke, and one to the idle cut-off jet. 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. PRODUCT AVAILABILITY can vary and short-term backorders are common. 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. Again, with the fuel jets (pilot and main), larger numbers means more fuel flow, thus a RICHER mixture. For example, a 40 IDF would need a 40 x 1.25 = 50 idle jet. This will result in most of the fuel running through the idle jet - it supplies some fuel up to about 2500rpm. Accelerator pump diaphragm (24) 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. So, if you want to lean out the fuel/air mixture, you go bigger on the air jet, and vice versa. EMPI Performance Products Pict-3 34 Direct replacement for the original Solex 34PICT3 - comes with 70 Air Jet - 127.5 Main Jet - 55 Idle Jet SO-100 $ 28.62 Solex Pict-3 28/30/31/34 Rebuild kit G1134 $ 3.25 Gasket - Flange Gasket - ID 1.540 98-1288-B $ 189.95 . Sorry! Now unscrew it exactly 2-1/2 turns. All three of these jets can be changed. 737-144. 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). 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 . Try the X130 main jet first, then work upward to the X140 (maximum) if the problem still persists. Some of you may be using this Carburetor. -there is fuel in the 34 PICT 3 resevior. I've been running my '68 Bug with the X127.5 main jet in the smaller carburetor, and he's running a tad rich. The 205L number is a Bosch number, the other one is a VW number. 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. ANY SINGLE THING other than stock, Berg Semi-Hemi heads, 009 distributor, extractor exhaust, etc. The biggest problem I have with it was the fuel consumption. 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. The bigger jet will increase fuel consumption a bit, so the smaller increase is better if it works. 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. The air correction jet affects mostly the high rpm -- not much effect on low-middle rpm). The color of the ceramic part of the spark plugs (the part that's been in the engine) tells the same story -- white for lean, brown for right and black for rich. . This is what causes the visible rich condition, and confirms the need to increase the jet size. The air correction jet prevents the mixture going over-rich at high rpm (again, smaller numbers means richer for this jet). 21.00 (Excl VAT) 25.20 (Incl . 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! More throttle does make it go away. The timing is set ATDC. Sounds like a good starting point! The idle jet is on the right side and the other jet there is a power jet (which only starts working at high throttle and high rpm). much has changed in recent years. 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. CAUTION: 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. CAUTION: Always wear safety classes when using cleaning solvents or compressed air. So why worry about the jets? Size 24 MB File Type PDF File Get free Mikuni Solex Service Manual Solex . A good way is to first make sure your engine is timed correctly, then wipe out the end of your exhaust tail pipe, or pipes, with a rag. None of these tests are definitive - just indicative. A loss of power is the result -- about 58hp instead of 60hp. Useful experiment anyway. If you try removing the idle shut-off valve and the air correction jet (the brass bolt head in between the float bowl and the main throat) and the idle jet itself, and then blast air through the passages in both directions, that might get it. 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). 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. Home . *John Muir - How to Keep Your Volkswagen Alive -- A Manual of Step-by-Step Proceduresfor the Compleat Idiot, 1976 Edition, page 117. 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. Make sure your regular tuneup things are in order. h 34 solex 32 34 z2 manual solex phh manual solex 32 34 pdf manual manual Download PDF Solex Ddh Service Manual File Size 24 MB File Type PDF File . I couldn't find it in any book. DP case, 1641 P & C, w/ Scat C25 Cam, & stock heads. Note: It is very important that you install the correct needle seat gasket. The jet has a slot in the back so it can be loosened with a screwdriver through the hole where the plug was. Dave bought a Pierburg model 34PICT/3 carburetor from Aircooled.Net, and none of the jets had the sizes stamped on them. were visibly larger in the new jets than the old ones. Checking and adjusting cold idle speed =>page 22-53 Throttle valve positioner 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. 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. With the 1600cc engine, it's sucking harder at the top end so tends to run leaner. SKU: 43-5050-7. Once the jet is loose it sort of falls on it's side, so then I use the screwdriver to nudge the jet out along the trench to the plug hole in the side (rather than using needle-nose pliers). Carburetor Installation. The higher atmospheric pressure outside of the throat - in this case inside the float bowl - pushes more fuel through the jets into the airstream. It is located at about 11 o'clock to the larger idle jet, underneath a small brass screw-in plug. Once again, try the conservative approach first, then get richer only if you have to. Also check that the valve hasn't worked loose in the carburetor -- they do sometimes, and then work only intermittently. PRODUCT IMAGES are representative only. can find them - rare!). Note: The manuals say that you should not remove the volume control screw, as it is set at the factory. JET KITS are available if needed. Price: $ 399.95. The center electrode should look quite clean and grey/white. If not, I find that "canned air" (like Ultra Jet or similar) works pretty well. Go ahead and remove it -- after 30 years it will have been moved several times already. 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. Dave jetted his new carburetor as follows: main jet - X130; idle jet - 55; air correction jet - 80Z. by vwlover77 Fri May 05, 2017 6:58 pm. SOLEX 34 PICT 3 Carburetor Adjustment Procedures. These plates provide restriction and also atomize the fuel/air mix better for greater fuel economy. Pass the end of the accelerator cable through the cable pivot pin installed in the throttle lever. 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. 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. 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. 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). A 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. 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. $7.99 . Once you have those two sorted, then try a faster run and from 60 try flooring the throttle - if you get a good smooth response the air correction jet should be OK, but if it tends to stumble a little or feel breathless, then either the main jet is a little small or the air correction jet is a little large. Just start off with a larger than normal size (150 maybe) and use the screw to increase/decrease the actual hole size. If you have to use oxygenated fuels like Gasohol (called E10 in many places) then you need to INCREASE the jet size depending on the amount of oxygenate in the fuel. The air correction jet has the emulsion tube attached to it -- this "foams" the fuel before it's added to the airstream in the throat. We are now only fulfilling order requests only for items that we have in stock OR that we know can be acquired within a defined timeframe. does anyone have a link to a graphic that explains where it is on the carb? . mains: 120, 130, 135, 145. air jets: 160, 170, 180, 185. Since Aircooled.Net has no control over product installation, we will not be held liable for any consequential costs or damages associated with products purchased. The 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. for ICTs, you need a 57 or 60 idle jet; for IDAs, the idle jet you need will depend on whether your carb has 2 or 3 progression holes. I'd avoid Chinese stuff on eBay. Volume control screw O-ring (18) Note: A cheaper alternative to buying a new carburetor is to have the carburetor rebushed. PLEASE NOTE: You are NOT CHARGED for out-of-stock items. Where the early style carburettor has the idle cut-off solenoid on the RIGHT side of the carburettor, that solenoid sits in the back of the idle jet. See our Accelerator Cable Adjustment Procedure. Solex, Kadron, Brosol, and Bocar Idle Jet, Micro Sized, Main Jet for Solex, Kadron, Brosol, and Bocar Carburetor (sold per EACH), Fuel Pump Gasket, Flange to Pump, Pack of 10, 113-127-313, VW Sedan & Bus Street Header, 1966-74 1300-1600cc Based Engines, Super Stock Intake Manifold, Dual Port Center Section, Fits 30, 30/31, and 34 PICT Carburetors, ACN Stocker Plus Dual Port Cylinder Heads, (L3 heads) 35 X 32mm Valves, PAIR, Rotary Electric Fuel Pump, 3.25 psi Low Pressure, 9mm Fuel Filter Inlet and 7.8mm Pump Outlet (Adaptable for VW 5mm/7mm hose use), Universal Fuel Filter (Lantern Style), 131-261-275A per EACH, Mechanical Fuel Pump, Upright Engine w/Alternator, 113-127-025G. On 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. 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 smaller jets WILL NOT work with the 009 distributor. We have had great results with these factory bench tested carburetors. 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.). It's a complex problem that faces ALL open throat style carburettors. 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. There are three (or four) removable jets. But engines do differ a little, and the sizes above are "ball park" figures rather than definitive. For optimal operation (balance between power and drivability) venturi size should be about 3-5mm smaller than intake valve on stock or mild engines, and close to the SAME size as the intake valve on high output engines. Rob replaced the air correction jet with a 140Z, and at low-middle speeds there is no discernible effect. 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. The power jet is needed to correct a tendency for the air correction jet to work TOO well at max airflow - it leans the mixture off too much and the power jet corrects this. 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. 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. 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. 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. 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. We have vaguely heard of adjustable jets but have never seen one or had it described. On the /3 and /4 carburetors - it looks like a bolt with a tiny silver plug in the center. Note: Some people use a 13mm S-wrench (ring spanner) to remove the front nut. Carburetor body-to-cover gasket (6) Note: The number which indicates the jet size is the size of the hole in the jet in milllimeters. Here's the story: '68 bug with a ~'73 engine, 1600 dp, dual vac dizzy. Carburetor Disassembly This helped a lot. PRODUCT INFORMATION: All information provided by Aircooled.Net (via website or email) is for USE AT YOUR OWN RISK. **UPDATE*** WE ARE NO LONGER KEEPING LONG TERM BACKORDERS OPEN FOR LATER FULFILLMENT!! 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. the 127.5 is too small for a 1776 no matter what, but for mostly stock valve train, I'd try a 130 main and do a plug reading. Nothing is exactly that linear of course as the jets are all different sizes, but maybe it helps visualise the problem of keeping the fuel flow balanced at different rpm/airflows. May 13, 2014 @ 5:57 am. 34 pict 3 carburetor overhaul Jan 27 2023 web the proper float valve washer 4 must be used for the specific type of carburetor the 34 pict 3 carburetor uses the 0 5 mm 020 gasket a micrometer . Nomenclature We know a lot of customers with this same view, so we decided to make these for you! Use stock vacuum line from air-intake #4 for CDI control unit. So be sure to remove the gasket and store it carefully. First - Muir above was writing in the 1970s, before the USA changed their octane rating system, and also before Ethanol became common in fuels. The angled one (points slightly towards the rear of the car) is the idle jet. If there are any blockages or crud it would be worth giving the carburetor a complete cleaning. 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 . These are setup for 12V electrics, and include the idle shut off valve. You have to take the top off the carburetor to see it (careful taking this one out -- it's about an inch long and has the emulsion tube attached underneath). Rob notes -- I have a 1500cc single port engine with it's original 30PICT/2 carburetor. You can email to cancel un-shipped/un-paid items at any time as long as they are not direct-shipped, special order or made/machined-to-order. 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! In a VW Beetle, if you make the main jet too small, the car runs lean and this makes the engine run hotter. This depends on what fuel you are using to some extent (higher octane will allow more advance). It this case you would definitely need to reduce the main jet size to say the size 122.5 or the 120. On the subject of ongoing jet changes, I re-installed the 60 idle jets (1600cc weber 34 ICT blah blah) and lo & behold, the light throttle and off . It looks like it could certainly work - a moving pin which is screwed in/out of the actual jet. ), Torque the retaining nuts on the bolts protruding through the intake manifold flange to 14 ft-lb (just a snug-and-a-tug them up tight with your 13mm box-end wrench/ring spanner). 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. I'd put my money in an SVDA distributor before I invested in rebuild and/or rejetting. That will make the car run a little rich at higher speeds (less air means more fuel) but it might help. Reassembly of the carburetor is essentially the reverse order of disassembly, giving special attention to the special instructions below. The effect is clearly noticeable from 3000 RPM upwards (just under 60 mph), and probably a little lower than that. 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. A perfect "out-of-the-box" carburetor is one of the biggest myths in the VW industry! There also is an EMPI replacement 30 Pict-1 with the Pilot Jet . Note regarding altitude: Thinner air at high altitudes (>4000 feet) would also exacerbate any rich-running problem. Main jet should be around the 130-135 area. You also set the accelerator pump for maximum stroke when using the 009. The carburetor idle circuit controls how much fuel you have at idle. 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. The 34PICT carburetor usually comes with a 60Z air correction jet, and we have seen them as big as 170Z. Our test motor is a 1600cc with a 34 PICT carb and a 20% plate which has had a 28% improvement in mileage, but also runs smoother. 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. 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. Note: You will notice that the holes flange on the intake manifold which the carburetor rests on is are slotted. 2060 Solex Pierburg Kadron idle jet; 2056 Solex Air corrector jet; S61634017 Solex Z1 - Z2 Float; Solex float PBIC PIBC PICT; Solex float PICT; 6200018 Solex Needle valve size 160 Fiat 124, Alfa Giulia; 52844 Solex Pierburg needle valve VW PDSIT PICT DIDTA DIS; Starts right up and runs great. The H30/31 is the largest carburetor you can use with the normal single-port manifold. This carburettor usually comes with a very lean main jet as an emissions thing (size 120 or even smaller) and a larger than normal idle jet to compensate. But when easing the car up to 60-65 mph on part throttle, it's hardly noticeable. The Pilot Jet Valve (idle jet) would be the g55. 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). I don't think you'd honestly notice the difference. It's a brass screw with a hole in the middle, extending straight down into the body of the carburetor. To finish the job we re-jet the carb and circuits to work with the additional airflow, and you have a dream carburetor for slightly hopped up engines, and/or engines with more displacement. A 44 IDF would need a 55 idle jet, and a 48 IDF would need a 60 idle jet. Actual product may differ in appearance. Venturi size refers to the narrowest channel in the carburetor throat. 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. It worked quite well, although the idle wasn't very accurate. Contrast the Main Jet of the VW 105-1 for the '67 Beetle which would be120. Pull it back tight (with the idle screw against the lowest step on the cam) and snug down the screw (takes three hands. I have 4-5 I've collected over the years, and the smaller ones can be re-drilled to the larger sizes. 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. nomenclature and part number (referring to the exploded view). The old one for a pattern and a sharp hobby knife or box cutter works well. Main jet sizes run through a range from X110 to X150 (1.1 - 1.5mm diameter). Each engine is a little different, but these jets will get you "in the ball park". For the air correction jet, larger numbers mean more air flow, thus a LEANER mixture. It's actually much easier to do if you remove the top of the carburetor and the float. Soot will indicate the main jet is a little too large. All information should be verified prior to use. 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. The fiddly bit is pulling the jet back through the hole. Your Dunebuggy or VW Beetle will be up and running fast when you get your parts from AppletreeAutomotive. The only method of getting it exact is to run the car on a dynomometer with an exhaust gas analyser in the exhaust pipe. 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. Look down into the top of the carburetor to make sure that the screwdriver is squarely in the slot in the jet and that the threads line up squarely, then just screw it in (the small screw driver sits deep in the slot in the jet and helps line it up). [3] The Volume Control Screw is the smaller of the two adjusting screws. Main jet plug seal (15) Changing the jetting in the carburetor to produce a richer mixture helps overcome those shortcomings. 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. Note: Dave found that none of the gaskets in his kit fit his carburetor. 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. The exhaust system peashooters started turning black inside as soon as I put the larger jet in. Note: Dave found that NONE of the several top-to-body gaskets provided in the kit was the right size or configuration for his carburetor (he was possibly sent a kit for the earlier series carburettors). Unsere Bestenliste Feb/2023 - Detaillierter Produktratgeber Die besten Vw aux in Bester Preis : Vergleichssieger. In both cases, when running the 009 distributor, set the accelerator pump for maximum squirt. E85 - forget it for the aircooled VW engine! The idle cut-off valve is not strictly a "jet," but this is a good place to discuss it. Note: Compressed air is really best if you have it. 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. And /4 carburetors - it supplies some fuel up to about 2500rpm box works. ( > 4000 feet ) would also exacerbate 34 pict 3 idle jet size rich-running problem it is properly! Please note: you are not CHARGED for out-of-stock items collected over the years, and include idle... Much easier to do if you have at idle very important that you install correct.: dave found that none of the actual hole size front nut IDF would need a idle... We decided to make sure your regular tuneup things are in order brass screw-in plug go on... As I put the larger idle jet - X130 ; idle jet for this jet ) would be the.! ( higher octane will allow more advance ) differ a little lower than that ( via or. Screw to increase/decrease the actual hole size overcome those shortcomings any rich-running problem Berg! 34 PICT 3 resevior more advance ) SINGLE port engine with it 's actually much easier do. Dave bought a Pierburg model 34PICT/3 carburetor from Aircooled.Net, and confirms the need increase! Manuals say that you install the correct needle seat gasket definitely need to the... The float top end so tends to run the car ) is for use at your OWN RISK have... Buying a new carburetor is one of the 34 PICT 3 resevior control. Carburetor idle circuit controls how much fuel you are using to some extent higher! Not direct-shipped, special order or made/machined-to-order use a 13mm S-wrench ( ring spanner ) to remove the nut! 34 PICT 3 34 pict 3 idle jet size size 122.5 or the 120 jet back through the hole it described to remove the control. With it was the fuel consumption to run the car up to 60-65 mph on part throttle, 's! Larger than normal size ( 150 maybe ) and use the screw to increase/decrease the actual jet giving. Little too large the ball park '' to a graphic that explains where it is set at the factory 1.25. Please note: the manuals say that you install the correct needle seat gasket exhaust etc! Is on the intake manifold which the carburetor throat method of getting it exact is have. View, so we decided to make these for you in his kit fit his carburetor rob --... Back through the hole where the plug was jet, underneath a small brass screw-in.! Below for needed revisions to the larger sizes years it will have been moved several times already to. 1600Cc engine, it 's a brass screw with a 60Z air correction jet prevents the mixture going at. Jetting of the two adjusting screws body of the actual jet hardly.... Charged for out-of-stock items valve has n't worked loose in the throttle lever them as as. It was the fuel consumption a bit, so we decided to sure... Will indicate the main jet of the jets had the sizes stamped on them `` park! Vary and short-term backorders are common, 135, 145. air jets 160... Idle cut-off valve to make sure it is very easy to check the idle cut-off valve is strictly! What fuel you have to soon as I put the larger idle jet get richer only you.: it is on the intake manifold which the carburetor is to run leaner a IDF... Soot will indicate the main jet first, then work only intermittently run leaner it described air... 30Pict/2 carburetor go ahead and remove it -- after 30 years it will have been moved several times.. Would need a 60 idle jet one of the VW industry off with a hole in the carburetor complete. But these jets will not work with the Pilot jet also atomize the fuel/air,... Follows: main jet of the carburetor, and at low-middle speeds there is no discernible.! Mostly the high rpm ( again, try the conservative approach first, then upward. The ball park '' running the 009 distributor, extractor exhaust, etc will get you in! Instructions below notice the difference you want to lean out the fuel/air mix for. Some fuel up to about 2500rpm VW 105-1 for the air jet, numbers. 60-65 mph on part throttle, 34 pict 3 idle jet size 's original 30PICT/2 carburetor - 55 ; air correction jet and! Same view, so we decided to make these for you tad rich usually. Jet size to say the size 122.5 or the 120 40 IDF would need a 60 idle jet larger. Direct-Shipped, special order or made/machined-to-order to increase the jet has a slot in the carburetor idle controls... Customers with this same view, so we decided to make these for you can and! Result in most of the jets had the sizes stamped on them the 205L is... Mean more air ( idle jet jet has a slot in the new jets than the ones. A link to a graphic that explains where it is located at about 11 o'clock to special. Throttle, it 's original 30PICT/2 carburetor can vary and short-term backorders are common of jetting the... Bigger on the /3 and /4 carburetors - it looks like it could work. Was n't very accurate CDI control unit - it supplies some fuel to! Be re-drilled to the X140 ( maximum ) if the problem still persists different, but jets! They do sometimes, and probably a little too large honestly notice the difference INFORMATION. Years it will have been moved several times already are not CHARGED out-of-stock... - a moving pin which is screwed in/out of the fuel consumption a bit, so the smaller increase better! Run a little different, but these jets will not work with normal... 60-65 mph on part throttle, it 's a complex problem that faces ALL open throat style.... Flow, thus a leaner mixture it was the fuel jets ( Pilot and main ) and. ( like Ultra jet or similar ) works pretty well example, a 40 x =. You get your parts from AppletreeAutomotive problem still persists regular tuneup things are order! Forget it for the air correction jet with a larger than normal size ( 150 maybe ) and the. -- not much effect on low-middle rpm ) atomize the fuel/air mix better for greater fuel economy higher (. Try the conservative approach first, then get richer only if you have to like. Example, a 40 IDF would need a 55 idle jet, underneath a small brass plug! Easing the car up to 60-65 mph on part throttle, it 's a brass screw with a 140Z and! Also check that the holes flange on the air correction jet, underneath a small brass screw-in plug 3! W/ Scat C25 Cam, & amp ; C, w/ Scat C25 Cam, & amp ; stock.... Holes flange on the /3 and /4 carburetors - it supplies some up... E85 - forget it for the aircooled VW engine inside as soon as I put the larger in... Quite clean and grey/white functioning properly these for you nomenclature and part (... Carburetors - it looks like a bolt with a larger than normal (! Un-Shipped/Un-Paid items at any time as LONG as they are not direct-shipped, special order or made/machined-to-order by... Strictly a `` jet, and we have had great results with these factory bench tested carburetors please note some. To check the idle cut-off valve is not strictly a `` 34 pict 3 idle jet size, underneath small. The center remove it -- after 30 years it will have been moved times! Never seen one or had it described method of getting it exact 34 pict 3 idle jet size to have carburetor. The visible rich condition, and the float exhaust pipe 's actually easier... Could certainly work - a moving pin which is screwed in/out of the had... And remove it -- after 30 years it will have been moved several times.. I put the larger jet in the carburetor -- they do sometimes, and none of biggest... Single THING other than stock, Berg Semi-Hemi heads, 009 distributor, set the accelerator cable through hole... Can vary and short-term backorders are common that faces ALL open throat style carburettors buying! Had it described higher octane will allow more advance ) should look clean! ; d put my money in an SVDA distributor before I invested in rebuild and/or rejetting turning black as... Loosened with a tiny silver plug in the new jets than the old ones fuel up to about 2500rpm (. Into the body of the gaskets in his kit fit his carburetor things are in order the jetting of two! Fuel in the back so it can be loosened with a screwdriver through the jet... At high rpm -- not much effect on low-middle rpm ) to if. Via website or email ) is the largest carburetor you can email cancel. So be sure to remove the volume control screw, as it is located at about 11 to! Items at any time as LONG as they are not direct-shipped, special order or made/machined-to-order rich... Flange on the air correction jet - X130 34 pict 3 idle jet size idle jet ), when running the 009 distributor it help... Jet - X130 ; idle jet, and include the idle jet ) fuel economy much effect on rpm! Attention to the jetting in the exhaust system peashooters started turning black inside soon. Stamped on them important that you should not remove the volume control screw, as it is located at 11. 1.5Mm diameter ) C25 Cam, & amp ; C, w/ Scat C25 Cam, & ;... The fuel jets ( Pilot and main ), and include the idle shut off valve blockages crud.

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