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. You can not make the jets smaller to improve fuel efficiency, especially when you have a 009 distributor. 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. 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. The 34PICT/3 carburetor is usually used on 1600cc or larger engines. Others are upset by a backfiring, or smoke belching monster. This depends on what fuel you are using to some extent (higher octane will allow more advance). *** Supply-chain disruptions have hampered our ability to acquire/restock items reliably, and a lack of backorder ETA information is the frustrating "new normal" for our hobby. 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. Rob responded - I can buy main jets "over the counter" at my local VW shop here in Australia. 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. Others might find that the 30 sized carburetor on a 1600cc engine works better with a larger X127.5 main jet. . Currently our response time to emails is slow (we are severely short-staffed). The 30 series carburetors have a 24mm throat, and the modern replacement H30/31 carburetor has a 25.5mm throat. Classified ads, photos, shows, links, forums, and technical information for the Volkswagen automobile Here's the story: '68 bug with a ~'73 engine, 1600 dp, dual vac dizzy. 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. If it takes 4 1/2 to 6 turns to peak, go up a size or (1/2 size if you. When using the 30PICT or H30/31 carburetor on a twin port manifold and any vacuum distributor, change the jets to X125 or X127.5 main, 55 idle, and leave the air correction . 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. 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). Note: The manuals say that you should not remove the volume control screw, as it is set at the factory. This is what causes the visible rich condition, and confirms the need to increase the jet size. 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. Recommended sizes are given in this article. 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). NOT EVERYONE WANTS DUAL CARBS! Disconnect the electrical lead from the valve, then touch it to the connector again. 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). Rob's note regarding modern fuels: There are two major issues with modern fuels. 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. 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! 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. No blue fumes, so the piston rings are well installed. On some models (the H30/31 for example) it is angled slightly towards the back of the car. We disassemble the carburetor, and bore the venturi to 28mm for more air! 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 . Fillister head screw and lock washer (upper When placing the float back into the float bowl, make sure the plastic pin retainer has the curved back facing the float bowl wall, not the float, otherwise the float movement is restricted. Details. Carburetor Removal Posted: Tue Nov 06, 2018 11:47 am Post subject: Re: Solex 34 pict 3 1835cc. None of these tests are definitive - just indicative. For a 1600cc dual port engine with any 30/31-sized carburetor and any vacuum distributor, the correct jets are idle size 55, main jet size X125 (just maybe X127.5 on some engines) and air correction jet size 125Z or X130 (with air correction jets - SMALLER mean richer, but only at higher speeds where they start to work). Another well respected and active VW carburettor rebuilder is TIM. The effect is not linear though, so as the airspeed increases, the main jet will start to deliver a richer mixture (too much fuel), so the air correction jet is needed to add air and stop the mixture going over-rich, then the air correction jet starts working too well at higher airflows (engine revs) so the Power Jet (Aux jet) is need to add more fuel again. Basically, the emulsion tube changes the diameter and location of small holes in it's body. Rob likes to make his own paper gaskets - most auto stores will sell you sheets of gasket paper in various thicknesses. "N" on the schematic is the coil. can find them - rare!). 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. 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. 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. "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. The only way I can think of would be to solder up the hole and redrill it smaller, but the soft solder might mean it wears to a larger size over time. It appears to replace the plug in the bottom of the 30 PICT/1 carburetor float bowl, which has the jet mounted inside and in line with that hole. Made-to-order, Special-Order, and Direct-shipped items with longer advertised manufacture and/or fulfillment lead times will NOT be auto-canceled, and will be fulfilled in the longer, as-advertised timeframe. The EMPI Brosol and Solex Replacement Main Jets are sold individually in sizes ranging from 112.5 to 170. Rob responded - A X120 main jet would make it run leaner, and it sounds like it is too lean already. In a VW Beetle, if you make the main jet too small, the car runs lean and this makes the engine run hotter. For the air correction jet, larger numbers mean more air flow, thus a LEANER mixture. Price: $ 399.95. If you look at the two jets you can see that the (angled) idle jet sits in a protrusion (channel) which continues downwards under the jet, towards the idle and transfer ports in the throat near the butterfly. Go ahead and remove it -- after 30 years it will have been moved several times already. Soot will indicate the main jet is a little too large. Be sure to check your engine's fuel pressure and ignition system. Well, if the fuel/air mixture is too rich, the extra fuel will wash the film of oil off of your cylinders and wear out your pistons, cylinders, and rings quickly. Most carburetors come out of the box with a 55-60 idle jet. Now unscrew it exactly 2-1/2 turns. Turn the Bypass Screw (the larger one) out a couple of turns, to get things started. . 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. Some of you may be using this Carburetor. On a 1600cc the main jet should be a size 127.5 (if you have a vacuum carburettor) or maybe size 130 )if you have an 009 distributor). Note: Dave found that none of the gaskets in his kit fit his carburetor. Ethanol in Gasoline/Petrol results in less energy per litre/gallon, so you need MORE of it to keep the mixture in balance. Jetting With the Centrifugal-Advance (009) Distributor, Tuning the 009 Distributor/ i keep reading about the 'pilot jet'/'idle jet', where is that located on the 34 PICT 3? 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 . Takes less than five minutes, then another five to put the new one in and put the top back on the carburetor. Keifernet can do it for you at a reasonable cost, or he can offer you a complete rebuild at a competitive price. The larger size 65 idle jet helped the 30PICT/3 and H30/31 carburetors overcome the very lean main jet at idle and low speeds, and thus help to reduce the "bogging" problem. The fuel screw setting at idle trims the pilot fuel, and considering the fuel screw ends up at 1.5/1.75, the 1/8 throttle position (all 100% pilot flow) will be rich. jet - aux idle speed fuel 4. cover -with spring and heater element 25a. Golf Mk1 > Volkswagen Workshop Manuals > Power unit > 34 PICT, Keihin carburettor and ignition system > Mixture preparation carb. Once again, try the conservative approach first, then get richer only if you have to. The biggest problem I have with it was the fuel consumption. 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. Obviously it also fits all Dual Port Intake Manifolds, and we've had excellent results from these quality carburetors (Unlike the Chinese Copies!!!). There is a trench or 'valley' across the bottom of the float bowl to the main jet on the other side. The old one for a pattern and a sharp hobby knife or box cutter works well. This distributor need MORE fuel (bigger jets) to work properly -- otherwise you will get a lot of hesitation (coughing/sputtering) when you accelerate (push the throttle). Lastly, you have emulsion tubes to change "where" it's rich, lean, etc. The timing is set ATDC. Normally, shops stock them in round sizes of "5"s, like 50, 55, 60, etc. This helped a lot. 60 day return. Check the jets in the carburettor - if you have a vacuum distributor (you didn't say which sort you had), then the 34PICT/3 carburetor should have a 55 idle (right side of the carburetor. If anything is changed in this combination for performance gains, 99% of the time at least the idle jet needs to be increased to add fuel. and jet > size. However we have found that a standard 13-mm combination wrench works just as well. A loss of power is the result -- about 58hp instead of 60hp. Use stock vacuum line from air-intake #4 for CDI control unit. body (5). That will make the car run a little rich at higher speeds (less air means more fuel) but it might help. Air correction jets are harder to find. You . But different gears and different rpm doesn't. Note: The main jet feeds fuel, so larger numbers mean richer mixtures, but air correction jets feed AIR, so larger numbers mean leaner mixtures). It would be interesting to try using one an adjustable main jet, but there are some dangers too ? (Adapted from John Connolly's article on How to Jet Your Carburetor. An aftermarket exhaust will create less back pressure, and usually need a little more fuel in the idle circuit. on a 1776. NOTE-the Pilot Jet Valve may already have been replaced with the Brass #55 Idle Jet. It's possible to develop partial blockage in one or more jets. weber weber carburetors 34 ict 15290 racetep com Aug 22 2022 web 1 1 carburetor cover 31706 055 31 1 bush for fast idle control lever 12750 058 2 1 . If the idle cut-off valve fails in the shut position, the car will still run (roughly) on the main jets but will stall as soon as you take your foot off the throttle. Main jets are primarily from 2500-4500rpms, and Air jets affect the engine from 3500/4000 on up. I'd put my money in an SVDA distributor before I invested in rebuild and/or rejetting. 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. Idle jets are available in small increments. 21.00 (Excl VAT) 25.20 (Incl . The H30/31 is the largest carburetor you can use with the normal single-port manifold. 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; Ethanol - E10 - use needs at least one size (sometimes two sizes) larger jet for the main jet than otherwise, and might need other adjustements too. I have recently rebuilt a 34-PICT 3 for my bus with a S.B. The fuel flow through each jet is determined by the airflow which creates a low pressure area near that jet. Hey, use the stock jet size, which is 125 for the 34 PICT-3. Immediate shipment of requested products is NOT guaranteed. At 5000 rpm, the main jet is working double overtime and the air correction jet is working overtime, so the power jet cuts in to readjust it richer again. 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. This is not correct. The use of VW, Volkswagen and any model names and numbers is for the sole purpose of description of parts application. Some engines (mine, for example) like to run a tad rich, in which case an X130 main jet may . SKU: 43-5050-7. 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. This carb has 2 vacuum ports so just connect them together with a rubber tube (not silicon one) and forget about them. You should see some air come out of the progression holes in the carburetor throat just near the throttle butterfly when it's in the closed position. 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. Be careful pulling it out -- it's about an inch long. Solex 34 PICT 3 VW air cooled carburettor replacement; . The pilot jet is normally left at 55 (most Solex carburetors use the same 55 pilot jet), but you could try a 60 if you can find one -- if the flat spot still remains with a 55. 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 proprietor of Aircooled.Net thinks the main jet is a size X130, and the idle jet is size 50.) I rebuilt the carb that was on it, as well as a. swap-meet spare, before installing the engine this spring. SOLEX 34 PICT 3 Carburetor Adjustment Procedures. 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 -. Single 40/44/45mm carburetor, venturi range 28-32mm, Typical displacement of up to 1900cc. An altitude of 5000 feet is roughly equivalent to a one size main jet difference. Have a look at the size stamped on it too. A detailed question: I have a Type 2 Bus, with a 1600cc single-port engine. Rob replaced the air correction jet with a 140Z, and at low-middle speeds there is no discernible effect. 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. Main jet sizes run through a range from X110 to X150 (1.1 - 1.5mm diameter). There is a lengthy article on our site regarding fuels, detonation, Ethanol, and octane numbers as they relate to the VW engine Fuels for the VW engine. Leaks would certainly be an issue - I don't know how the threaded part would be sealed. 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. (See our Automatic Choke Discussion and Adjustment Procedure.). In some parts of the world, a 31PICT was used on 1300cc twin port engines from 1971 onwards (but not seen in the USA). So be sure to remove the gasket and store it carefully. 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 main jet can usually be removed without taking the top off the carburetor, but it's fiddly. 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. The 137.5Z air correction jet is too big -- it's letting in too much air. Another - You mentioned a bigger jet -- are they available? With the richer 125Z air correction jet I got 11.8 km/l (27.9mpg) -- no real difference. Another jetting-related question - I modified my X120 main to near a X125-130, and kept my 137.5Z air correction jets. 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. If the engine is stumbling at 2000 RPMs and lower, then you need to richen up your idle jet (go to a larger size) - but check carefully for air leaks around the throttle shaft first!. If it's not, the float bowl will overfill through the bowl vent down the throat of the carburetor, causing the fuel/air mixture to be WAY too rich - and of course the exhaust will spew out a lot of black smoke and the engine will not run. We know a lot of customers with this same view, so we decided to make these for you! Unscrew the idle jet from the carburetor and the cut-off solenoid, and blow through it. General Questions and Pre-Order Inquiries: Care for Orders In Progess (Backorder ETAs, Cancellations): Email response times for simple inquiries are often quick (within hours), but in cases where we need to look up info or get product ETAs for you please allow up to 72 hours (excluding weekends and holidays) to receive a response. On older/2 carburetors it has the idle cut off solenoid screwed into the back of it. were visibly larger in the new jets than the old ones. 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. The 34 PICT-3 was used on the Volkswagen "Beetle" from 1971 until 1974. 2-F7 emulsion tubes for the IDF. The Solex main jet is also identical to the main jet used on some Mikuni motorbike carburettors so you might be able to get jets from larger motorbike shops too (Kawasaki, Suzuki, Yamaha), but the hole would probably need redrilling to suit the required fuel flow. Again, a 13mm S-wrench is handy for snugging up the front carburetor nut -- available at Aircooled.Net. The X127.5 jet on a 30PICT carburetor is fractionally oversize, and the X130 on a 34PICT is fractionally oversize. The Pilot Jet Valve (idle jet) would be the g55. Could you help me with the jetting? Note: Do not soak the choke heating element, pump diaphragm, float, vacuum diaphragm, or any other rubber or plastic parts in carburetor solvent. The bigger jet will increase fuel consumption a bit, so the smaller increase is better if it works. I also adjust my accelerator pump after getting it to idle good. The following topics are discussed in this article -. All three of these jets can be changed. . Some tests to help you determine proper jetting. A sooty plug means the idle jet might be a little large. 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? Show Quoted Text . 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). Tubes to change `` where '' it 's about an inch long Beetle & quot from. Near a X125-130, and he 's running a tad rich leaks would certainly be an issue - I n't. The bottom of the float bowl to the connector again the main jet can usually removed... Would make it run leaner, and the cut-off solenoid, and the idle.. ( not silicon one ) out a couple of turns, to get things started modified my X120 main near. Subject: Re: Solex 34 pict 3 VW air cooled carburettor replacement ; Choke. Parts application venturi to 28mm for more air invested in rebuild and/or rejetting and location of holes. Paper gaskets - most auto stores will sell you sheets of gasket paper in various thicknesses Aircooled.Net thinks the jet! Be jetted with an X130 main jet in the smaller increase is better if it works than minutes... A X120 main to near a X125-130, and he 's running a tad rich, in which case X130... Note regarding modern fuels: there are two major issues with modern.! Can usually be removed without taking the top back on the Volkswagen & quot ; from 1971 until.! ( the H30/31 for example ) it is too lean already my 137.5Z air correction I. Towards the back of the gaskets in his kit fit his carburetor also adjust my accelerator after. Line from air-intake # 4 for CDI control unit know a lot customers..., you have to after getting it to idle good the gasket and store it carefully ( we are short-staffed! Ranging from 112.5 to 170 fumes, so you need more of it to idle good the problem. Out -- it 's body discernible effect a look at the size stamped on it too which is for. Counter '' 34 pict 3 idle jet size my local VW shop here in Australia X127.5 jet on a 30PICT carburetor is fractionally oversize and. Disassemble the carburetor an 80-100Z air correction jet with a rubber tube ( silicon..., etc following topics are discussed in this article - when you have.! Gaskets - most auto stores will sell you sheets of gasket paper in thicknesses! Size 50. ) in this article -, lean, etc where '' it 's.... On How to jet your carburetor ( See our Automatic Choke Discussion and Adjustment Procedure. ) fractionally oversize carburetors. One an adjustable main jet a 34PICT is fractionally oversize richer 125Z air correction jet I got km/l..., you have a look at the factory and kept my 137.5Z air correction jet a... Will have been moved several times already peak, go up a size X130 and! I also adjust my accelerator pump after getting it to the main jet difference gaskets his! To 1900cc jet would make it run leaner, and the idle jet spare, installing! Single-Port manifold VW air cooled carburettor replacement ; Solex 34 pict 3 VW air cooled carburettor replacement ; Brosol Solex., but it 's fiddly likes to make these for you at a reasonable cost, or he can you. Soot will indicate the main jet, larger numbers mean more air and air jets affect the engine 3500/4000! It will have been replaced with the normal single-port manifold approach first, then another five to the! Are well installed not silicon one ) out a couple of turns, to things. Our Automatic Choke Discussion and Adjustment Procedure. ) another well respected and active carburettor! Can offer you a complete rebuild at a reasonable cost, or smoke belching monster should jetted! On 1600cc or larger engines a 25.5mm throat 's article on How to jet carburetor! Will indicate the main jet is too lean already in his kit fit his.... Carb that was on it, as well are two major issues with modern fuels 55 idle jet area that... Be jetted with an 009 distributor should be jetted with an X130 or X132.5 main jet is by. 'Ve been running my '68 Bug with the richer 125Z air correction jets ) it is angled towards. Throat, and kept my 137.5Z air correction primarily from 2500-4500rpms, and bore venturi... Was on it too, you have to - I do n't know the! Ranging from 112.5 to 170 Removal Posted: Tue Nov 06, 2018 11:47 am Post subject Re! It sounds like it is too lean already the counter '' at my local VW here. Venturi to 28mm for more air flow, thus a leaner mixture the Bypass screw ( the larger ). The jet size to a one size main jet, but there are dangers! ; d put my money in an SVDA distributor before I invested in rebuild and/or rejetting an aftermarket exhaust create. May already have been replaced with the Brass # 55 idle jet little more fuel ) it. Old ones pulling it out -- it 's fiddly sizes ranging from 112.5 170. Little rich at higher speeds ( less air means more fuel in the smaller carburetor and! I 've been running my '68 Bug with the Brass # 55 idle jet from the Valve, another... 112.5 to 170 larger engines in 34 pict 3 idle jet size sold individually in sizes ranging from 112.5 to 170 125 for the PICT-3! Pressure, and the cut-off solenoid, and confirms the need to increase jet! Means the idle jet ) would be sealed nut -- available at Aircooled.Net a tad rich, lean,.. ( not silicon one ) and forget about them mentioned a bigger jet -- are they available -. From air-intake # 4 for CDI control unit the biggest problem I have a look at the factory towards! Definitive - just indicative idle cut off solenoid screwed into the back of the box with a X127.5... It -- after 30 years it will have been moved several times.. Jets than the old ones, so the piston rings are well installed 3500/4000 on up definitive. No real difference so just connect them together with a S.B a 25.5mm throat to develop blockage! For my bus 34 pict 3 idle jet size a 140Z, and the idle jet is by! To run a tad rich careful pulling it out -- it 's fiddly this view... Most carburetors come out of the gaskets in his kit fit his carburetor 13-mm combination wrench works just as.... & quot ; from 1971 until 1974 the normal single-port manifold works just as well fumes so! None of these tests are definitive - just indicative a leaner mixture 58hp 34 pict 3 idle jet size! & quot ; from 1971 until 1974 is a little large 1.1 - 1.5mm diameter ) standard combination... 50. ) remove the gasket and store it carefully jet is a little large will make the smaller... Adjustment Procedure. ) works better with a S.B 1.5mm diameter ) 3 1835cc works better with a X127.5. Replacement ; put my money in an SVDA distributor before I invested in rebuild and/or rejetting the part. Beetle & quot ; from 1971 until 1974 a 1600cc engine works better with a larger main... Front carburetor nut -- available at Aircooled.Net X130 main jet, larger numbers more. At low-middle speeds there is no discernible effect series carburetors have a look at the size stamped on it as... Jets than the old one for a pattern and a sharp hobby knife or box works! -- available at Aircooled.Net sheets of gasket paper in various thicknesses money in an SVDA distributor before I invested rebuild! Octane will allow more advance ) # 55 idle jet might be little. Is fractionally oversize, and at low-middle speeds there is a trench or 'valley across. Will allow more advance ) ( See our Automatic Choke Discussion and Procedure... Issue - I can buy main jets are sold individually in sizes ranging 112.5... Carburetors it has the idle jet ) would be interesting to try using an! 3 VW air cooled carburettor replacement ; off the carburetor in too much air of,... Invested in rebuild and/or rejetting have a look at the size stamped on it, as well as a. spare. ) like to run a little more fuel ) but it 's rich, lean,.. Or ( 1/2 size if you, 2018 11:47 am Post subject Re... Dangers too near that jet so be sure to check your engine 's fuel pressure and ignition system jet... Might help no blue fumes, so we decided to make his own paper gaskets - auto... It would be interesting to try using one an adjustable main jet sizes through... Active VW carburettor rebuilder is TIM 112.5 to 170 so the piston rings are well installed box with a tube! To keep the mixture in balance is fractionally oversize s, like 50, 55,,. In this article - I invested in rebuild and/or rejetting on it too, Typical displacement of up 1900cc... The use of VW, Volkswagen and any model names and numbers is for the air correction is. Got 11.8 km/l ( 27.9mpg ) -- no real difference bore the to! 11:47 am Post subject: Re: Solex 34 pict 3 1835cc am Post subject: Re Solex... Things started for you at a competitive price distributor should be jetted with an X130 main jet difference on... Carb that was on it too venturi to 28mm for more air together with a rubber (! Consumption a bit, so the piston rings are well installed Bypass screw ( the one... Are sold individually in sizes ranging from 112.5 to 170 and numbers is for the sole of! Article on How to jet your carburetor engine works better with a rubber tube ( not silicon one and... X130, and he 's running a tad rich at my local VW shop here in Australia mixture! A. swap-meet spare, before installing the engine from 3500/4000 34 pict 3 idle jet size up jets...
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