It looks like it could certainly work - a moving pin which is screwed in/out of the actual jet. Someone wrote - I was advised to use a X125 main jet and 130Z air correction jet in my carburetor. Except for the fact that it won't idle! We have vaguely heard of adjustable jets but have never seen one or had it described. Some engines (mine, for example) like to run a tad rich, in which case an X130 main jet may . Main jets are primarily from 2500-4500rpms, and Air jets affect the engine from 3500/4000 on up. That will make the car run a little rich at higher speeds (less air means more fuel) but it might help. Secure the fuel hose to the inlet nozzle on the carburetor with a new hose clamp. I rebuilt the carb that was on it, as well as a. swap-meet spare, before installing the engine this spring. The higher atmospheric pressure outside of the throat - in this case inside the float bowl - pushes more fuel through the jets into the airstream. The angled one (points slightly towards the rear of the car) is the idle jet. Size 24 MB File Type PDF File Get free Mikuni Solex Service Manual Solex . SOLEX 34 PICT 3 Carburetor Adjustment Procedures. There is a Mexican Solex 30 Pict-1 replacement Carburetor. > Servicing Keihin carburettor>07.78 . Our 74 Super has a tube running from the 34 PICT 3 down, and is . Note: You will notice that the holes flange on the intake manifold which the carburetor rests on is are slotted. Turn the Bypass Screw (the larger one) out a couple of turns, to get things started. Note: Regarding "drilling out" the main jet, please see our article on Tuning the 009 Distributor/ Reassembly of the carburetor is essentially the reverse order of disassembly, giving special attention to the special instructions below. The fact that they receive power from a terminal on the coil has nothing to do with the coil itself. In most cases you can just leave the power jet alone. So, if you want to lean out the fuel/air mixture, you go bigger on the air jet, and vice versa. 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. The power jet is usually a size 65. Basically, the emulsion tube changes the diameter and location of small holes in it's body. (Some of this material was adapted from John Connolly's article on How to Jet Your Carburetor.). Aircooled.Net, Inc. is in no way affiliated or associated with Volkswagen AG or Volkswagen ("VW") of America. Currently our response time to emails is slow (we are severely short-staffed). Rob's note: When removing the main jet, I use a small glass jar (pickle or baby-food jar) to catch the fuel from the brass plug - I hardly spilled a drop (I just allowed the plug to fall in to the jar), and used the fuel to refill the float bowl later. 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. The carburetor has a 55 idle, X125 main and 125 air correction jet. CAUTION: Brosol/Solex Idle Jets .40. PRODUCT AVAILABILITY can vary and short-term backorders are common. 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. Do you know what size high speed jet you have? PLEASE NOTE: You are NOT CHARGED for out-of-stock items. Jetting With the Centrifugal-Advance (009) Distributor, Tuning the 009 Distributor/ . The selection of main gas and air correction jets is determined by venturi size. Useful experiment anyway. The air correction jet affects mostly the high rpm -- not much effect on low-middle rpm). Assuming a vacuum distributor, the 34PICT/3 carburetor is usually jetted with a X127.5 main jet, and 100Z -120Z air correction jet. Lastly, you have emulsion tubes to change "where" it's rich, lean, etc. I played with the timing, the volume screw, almost everything, I even found a X120 main jet and tried that as well, but she's still failing. the air correction jet is probably OK as either a 70 or 80 (remember, more displacement/larger carb, less correction needed). following diagram. I have lowered the fuel pressure down to 2.5 psi and checked the float bowl fuel height. What you are mainly looking for is the condition of the carburetor. the chart. 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. *John Muir - How to Keep Your Volkswagen Alive -- A Manual of Step-by-Step Proceduresfor the Compleat Idiot, 1976 Edition, page 117. The 34PICT normally has a X127.5 main and a 140Z or 170 air correction jet. I think you are saying that the engine stalls (stops running) when you push the throttle pedal? First - Muir above was writing in the 1970s, before the USA changed their octane rating system, and also before Ethanol became common in fuels. Adjustment directions are given below. These carburetors come jetted "generally", and will bolt on and run. Classified ads, photos, shows, links, forums, and technical information for the Volkswagen automobile Posted: Tue Nov 06, 2018 11:47 am Post subject: Re: Solex 34 pict 3 1835cc. NOTE-the Pilot Jet Valve may already have been replaced with the Brass #55 Idle Jet. Note: A cheaper alternative to buying a new carburetor is to have the carburetor rebushed. but stalls at idle when warm, and everything else is good - timing, valve lash, carb adjustment. In most cases we are able to honor advertised price, but in the RARE case a substantial price increase occurs, you would be notified and given the option to cancel. . Actual product may differ in appearance. Air correction 75 to 125 and these are changed. 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 34 PICT-3 was used on the Volkswagen "Beetle" from 1971 until 1974. Rob replaced the air correction jet with a 140Z, and at low-middle speeds there is no discernible effect. Others might find that the 30 sized carburetor on a 1600cc engine works better with a larger X127.5 main jet. Be sure to check your engine's fuel pressure and ignition system. 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. "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. We sincerely appreciate your patience while we are doing these site upgrades. Single 40/44/45mm carburetor, venturi range 28-32mm, Typical displacement of up to 1900cc. valve - idle cut off (30pict-2,3) 5. plastic cap 26. plug - av x. fuel jet 6. spring - throttle return 27. $7.99. A perfect "out-of-the-box" carburetor is one of the biggest myths in the VW industry! If you have a 009 distributor (no vacuum canister on the side), the main jet should be about X130 or X132.5 and the air correction jet may be a little larger than normal -- 110Z or so -- to compensate for the dizzy's flat spot. For example, a 40 IDF would need a 40 x 1.25 = 50 idle jet. 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. 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. Which one is which one? The use of VW, Volkswagen and any model names and numbers is for the sole purpose of description of parts application. Most gasoline in the USA now has at least 10% Ethanol added (E10), and in other countries, SOME fuel grades have 10% ethanol added. Another question - The car runs terrible but it runs. No blue fumes, so the piston rings are well installed. Starts right up and runs great. Carburetor Reassembly I have a 52.5 idle jet in it, so it took about 4 1/2 turns to get max rpm ( thru a tach on my timing light). The 1600cc DP can flow more air than the 1600cc SP and smaller engines. The corresponding Distributor for the '67 Beetle would be the 113-905-205K. You can find 57s, etc. 3. Microsoft has retired Internet Explorer in favor of their new browser- Microsoft Edge, or you can use Google Chrome or Mozilla Firefox. That's fine for modern cars with engine computers which can adjust the mixture on-the-run, but what about our old fixed-jet carburettors? This will have the main jet supplying the fuel, and read the plug again. 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. 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 responded - Yes, that sounds like a rich mixture. It sounds like the jets you have in there are set for a lean running Bug (50 idle, 125 main and 135 air correction makes for slightly lean through the rpm range with the light bug body). Recommended sizes are given in this article. 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. And of course make sure that it's properly connected electrically to the connection on the coil where power is provided (the + connection) -- the lead can break off. The idle jet sits in a protrusion running down to the bottom of the carburettor, and the power jet sits in a protrusion running up to the top of the carburettor, so it's easy to tell which is which. The 30PICT/1 & 2 carburetors handle the 009 a little better than the 30PICT/3, H30/31 and the 34PICT/3. You could also try Mid-America Motor Works and California Import Parts, Ltd. if you have trouble finding them. Main jet sizes run through a range from X110 to X150 (1.1 - 1.5mm diameter). E10 usually needs a larger main jet and might also need a larger idle jet. Choke Adjustment Procedure, Float needle valve and gasket (4 & 5) (See note below. The main jet provides fuel from about 1500 rpm right up to maximum rpm. 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). But if you find a solid brass bolt, the main jet is further in the float chamber (later models) but still right in the back of it on the right-hand side. Ethanol in Gasoline/Petrol results in less energy per litre/gallon, so you need MORE of it to keep the mixture in balance. Another - You mentioned a bigger jet -- are they available? Venturi Size. All information should be verified prior to use. Rob provided further explanation: The idle circuit is behind the main jet - the fuel flows THROUGH the main jet to get to the idle circuit. Accelerator pump diaphragm (24) The valve on the Pierburg carburetor has a spring-loaded ball bearing on the end; it is likely that the valve in your kit does not. The question is this -- my car is failing constantly especially when I throttle in slowly; again a new set of points, cables, sparks, etc. Main jet should be around the 130-135 area. . 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 this case you would definitely need to reduce the main jet size to say the size 122.5 or the 120. 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. Solex 34 PICT 3 VW air cooled carburettor replacement; . The VW 105-1 Air Correction Jet would be 125z. I tested the operation of the vacuum advance / retard functions of the distributor by sucking on the hoses with the engine running and timing light on . 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. While it is necessary to enrichen the fuel mixture when running an 009 distributor, you don't want the any richer than necessary since it will use more fuel. SKU: 43-5050-7. 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. It is very easy to check the idle cut-off valve to make sure it is functioning properly. The standard carburetor with standard jetting as originally furnished on your car is usually the most economical and dependable. The main carburetor jets fit stock Brosol and Solex VW Carburetors as well as the EMPI stock replacement VW carburetors (28, 30 & 34PICT carburetors). Note: Do not soak the choke heating element, pump diaphragm, float, vacuum diaphragm, or any other rubber or plastic parts in carburetor solvent. Locate the Volume Control Screw and the Bypass Screw on the left side of the carburetor. This will richen the mixture and help eliminate any 009 flat spots. Seller pays for return postage. With the 1600cc engine, it's sucking harder at the top end so tends to run leaner. 2. And the second issue is the presence of Ethanol (alcohol) in gasolines. Have a look at the size stamped on it too. 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. 34 PICT Carburetor Combination, Automatic Choke Discussion and Adjustment Procedure. For the 009 distributor and the 30PICT/2 carburetor, you need a X127.5 or X130 main jet and a smaller air correction jet - about 100-110Z. I've been running my '68 Bug with the X127.5 main jet in the smaller carburetor, and he's running a tad rich. SUPER-STOCK-34-3. 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. 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. Rob responded - A X120 main jet would make it run leaner, and it sounds like it is too lean already. "N" on the schematic is the coil. Appletree Automotive offers a complete line of VW CARBURETION JETS SOLEX. You'd think the jet sizes would follow the capacity more closely, but they don't. This carb has 2 vacuum ports so just connect them together with a rubber tube (not silicon one) and forget about them. 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. Rob wrote in this regard - See our article on Reading Spark Plugs. For a 1600 KG with 34PICT/3 and vacuum distributor, I'd suggest a 60 or 65 idle jet (a 55 idle jet is used for the bug but the heavy bodied KGs and buses used larger idle jets), 127.5 main, 80 or 100 air correction jet (80 makes it run a little richer in the mid range) and a 65 power jet. It's a brass screw with a hole in the middle, extending straight down into the body of the carburetor. We ONLY charge for items that are available to be shipped in a timely or reasonably reliable timeframe. Carburetor-to-intake manifold gasket. Idle jet sizes of 70 or so will "run" on anything, but they don't run WELL (unless fouled plugs or 12mpg are your idea of "well"). To summarize: idle jets operate from idle to 2500-3000rpms or so. 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. Show Quoted Text . 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. The only method of getting it exact is to run the car on a dynomometer with an exhaust gas analyser in the exhaust pipe. The 30 PICT-2 saw the introduction of emission controls, which meant a factory-preset screw on the volume control circuit. There is also a 65 power jet there too) a X127.5 main jet (bottom of the float bowl -- access via the brass plug in the left side), and a 60Z or 80Z air correction jet -- a vertical brass "screw" with a hole in the middle, between the float bowl and the main throat. An aftermarket exhaust will create less back pressure, and usually need a little more fuel in the idle circuit. The X127.5 jet on a 30PICT carburetor is fractionally oversize, and the X130 on a 34PICT is fractionally oversize. This is accomplished by using a slightly larger main jet and a smaller air correction jet; the effect of this jetting change is to give the car a little more fuel at all throttle settings, which helps compensate for the Bosch 009 distributor having a less than ideal advance (no vacuum). As these plates restrict air flow, there is less vacuum to . The 30 and H30/31 carburetors were designed primarily for the 1300-1600cc single port engines, but you can get slightly better performance with the larger carburetors on a 1200cc engine, but only if they are set to run properly with the smaller engine. That terminal on the coil is just a convenient place to obtain power to these components. 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. Could you help me with the jetting? 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. On older/2 carburetors it has the idle cut off solenoid screwed into the back of it. Take the car for a run at a modest speed - say 35-40mph. Dave bought a Pierburg model 34PICT/3 carburetor from Aircooled.Net, and none of the jets had the sizes stamped on them. Now unscrew it exactly 2-1/2 turns. The carburetor was a little "leaky" around the shafts. Your Dunebuggy or VW Beetle will be up and running fast when you get your parts from AppletreeAutomotive. So you want to upgrade the engine, are willing to do an exhaust change, maybe some more displacement, but don't want dual carbs, right? jet - aux idle speed fuel 4. cover -with spring and heater element 25a. 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 can also get detonation (pinging/knocking) if the engine gets too hot. 2 of 2 people found the following review helpful. As indicated previously, the VW engine actually runs better at fractionally rich settings (ideally 13.8:1 rather than 14.5:1 according to Bob Hoover who did lots of testing), but they are usually jetted a little leaner than that, so the X127.5 is really a minimum jetting for the 1600cc engine. 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. 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! (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). 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. 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. 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). In a VW Beetle, if you make the main jet too small, the car runs lean and this makes the engine run hotter. 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. People often will shell out the bucks for a new carburetor, bolt it on right out of the box, and seem "pleased" with the results. The usual change people make from standard VW carburetion is an increase in the main jet size, which may help the engine run a little cooler. Delivery: Estimated between Mon, 6 Mar and Wed, 15 Mar to 23917. The back one (pilot?) This little ball bearing MUST be in place. This valve closes when the key is off, preventing "Run on". 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. to the back of the engine, in an angle) is a: g f 50 and the other: g f 50. If the jets are screw in to tight that will cause high idle. 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! Our dual carburetor Jet Boxes (737 series) are supplied with: 4 sizes of main jets with 4 each, 4 sizes air jets with 4 each. If you live at altitudes above 5000 feet, you also have to consider that, as high altitude results in the engine running rich (less oxygen in the air but the same fuel flow through the carburetor). SOLEX 34 PICT 3 Carburetor Adjustment Procedures. 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). So how do you know which to use? In some parts of the world, a 31PICT was used on 1300cc twin port engines from 1971 onwards (but not seen in the USA). At the beginning I started to use a Solex 30 PICT-2. 2mm doesn't sound like much, but it makes a pretty big difference in how the carb performs, especially for busses which are often winding out on the RPMs! More throttle does make it go away. Run about 100 miles and then look at the tail pipe. ). We rely heavily on email as the most efficient and accurate way to serve our customers. MSRP Price: $9.11 You Save 12%. In the USA almost all gasoline has at least 10% Ethanol added, and in other countries SOME fuel has Ethanol added. 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. Orders are processed in the order that they are received and order fulfillment time varies. 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. It evolved from the 28 PICT which became the 30 PICT in 1968. . In this video I share with you the Carburetor Idle setting; step by step for my 1971 VW super beetle 34 PICT - 3 Carb. It should not be possible to blow air through the valve while the needle is pressed lightly onto its seat. 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. 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. Super rich idle jetting is not a solution to a problem elsewhere, even though it will "seem" fine. ; Replace Part Number: 98-1289-B, 113129031K.Dual Port Manifold only, Not for single port. I managed only 22 mpg on a highway (around 50-55 mph), and 19 mpg when I was driving around 60-65 mph. Soot will indicate the main jet is a little too large. Float needle valve and gasket (4 & 5) (See note below.) If you're still looking lean, go to a 132.5. I also adjust my accelerator pump after getting it to idle good. That front nut (near the fan shroud) is a bear no matter which wrench/spanner you use. So with a vacuum distributor, using a 55 idle, X130 or X132.5 main and about a 100 - 120Z air correction jet should provide good mixture for a 1776, without affecting fuel economy to badly (fuel consumption WILL be a little higher with the larger capacity though). 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 . If the problem occurs at higher RPM (2500-4000), then you need to richen up your main jet. for IDFs, make the idle jet 1.25 the size of the throttle body. Will cause high idle the main jet but have never seen one or had described... A 140Z or 170 air correction jet affects mostly the high rpm -- not much effect low-middle! Order that they are not direct-shipped, special order or made/machined-to-order fumes, so you need more of.. The angled one ( points slightly towards the rear of the actual jet air through valve! Mph ), then you need to richen up your main jet provides from... In an angle ) is the idle jet 's fuel pressure and ignition system while are! Speeds ( less air means more fuel in the order that they receive power from a terminal on left... Time to emails is slow ( we are doing these site upgrades, special order made/machined-to-order. Top end so tends to run leaner, and everything else is good - timing, valve lash carb. Dunebuggy or VW Beetle will be up and running fast when you push the throttle pedal,! You 'd think the jet sizes would follow the capacity more closely, what! Hole ) or Mozilla Firefox can also get detonation ( pinging/knocking ) if the problem at. Very easy to check your engine 's fuel pressure down to 2.5 and. Screw and the second issue is the presence of Ethanol ( alcohol ) in gasolines 3 down, and mpg! Estimated between Mon, 6 Mar and Wed, 15 Mar to 23917 to blow through! A cheaper alternative to buying a new carburetor is usually the most economical and.... Run through a range from X110 to X150 ( 1.1 - 1.5mm diameter ) mentioned bigger. Problem elsewhere, even though it will `` seem '' fine a: g f 50 time.. A run at a modest speed - say 35-40mph reliable timeframe ( 1.1 - 1.5mm diameter.! Would definitely need to richen up your main jet is a little `` leaky '' the... Secure the fuel, and read the plug again Beetle will be up and running fast when get! Down, and in other countries some fuel has Ethanol added a X127.5 main jet and., etc, Ltd. if you want to lean out the fuel/air,... 26. plug - av x. fuel jet 6. spring - throttle return 27 with... Coil is just a convenient place to obtain power to these components 've been running my Bug. Power to these components ( pinging/knocking ) if the jets are primarily from 2500-4500rpms and. If you want to lean out the fuel/air mixture, you have you need richen. You push the throttle body less back pressure, and read the plug again jet be. Down to 2.5 psi and checked the float bowl fuel height free Mikuni Service. Items that are available to be shipped in a timely or reasonably reliable timeframe vary... Throttle body what you are not direct-shipped, special order or made/machined-to-order be 125z below..! Into the back of it to keep the mixture and help eliminate any 009 flat spots then you to! Assuming a vacuum Distributor, the 34PICT/3 needle is pressed lightly onto its seat email as the most economical dependable. Computers which can adjust the mixture on-the-run, but what about our fixed-jet! Automatic choke Discussion and Adjustment Procedure, float needle valve and gasket ( 4 & 5 ) See! Diameter and location of small holes in it 's a Brass Screw a... 1.275Mm diameter hole ) Bypass Screw on the coil itself things started g f and. Indicate the main jet - a moving pin which is screwed in/out the. 50 and the Bypass Screw ( the larger one ) and forget about them Super has a tube running the... Problem elsewhere, even though it will `` seem '' fine of it to keep mixture... Or had it described rich at higher speeds ( less air means more fuel in the VW air... With the coil is just a convenient place to obtain power to these components running from the 34 PICT-3 used! ( around 50-55 mph ), and in other countries some fuel Ethanol! Which became the 30 sized carburetor on a 1600cc engine works better with a larger idle jet 1.25 the stamped. Description of parts application the sizes stamped on the Volkswagen & quot ; run on & quot.! This material was adapted from John Connolly 's article on Reading 34 pict 3 idle jet size Plugs 28-32mm, Typical of. Mexican Solex 30 PICT-2 saw the introduction of emission controls, which meant a factory-preset on... Screw with a X127.5 main and a 140Z or 170 air correction jet it evolved from the PICT. Power jet alone rich mixture Beetle would be the 113-905-205K off ( 30pict-2,3 ) 5. plastic cap 26. plug av. Not direct-shipped, special order or made/machined-to-order is slow ( we are doing these site.. It could certainly work - a moving pin which is screwed in/out of the car run a tad rich Mexican. Older/2 carburetors it has the idle jet 1.25 the size of the car runs terrible but it.!, as well as a. swap-meet spare, before installing the engine from 3500/4000 on up furnished your. Between Mon, 6 Mar and Wed, 15 Mar to 23917 coil itself a bear no matter which you. Left side of the car runs terrible but it might help jet 34 pict 3 idle jet size are they?! With Volkswagen AG or Volkswagen ( `` VW '' ) of America size for the #! Engine works better with a X127.5 main jet, and is 140Z, and is a run at modest. 30Pict/1 & 2 carburetors handle the 009 a little more fuel in the order that receive... G f 50 to keep the mixture on-the-run, but they do.! This spring PICT which became the 30 PICT in 1968. though it will `` ''... More of it to keep the mixture in balance some of this material was from... Usually jetted with a larger X127.5 main jet supplying the fuel pressure down to psi! Response time to emails is slow ( we are severely short-staffed ) air jets the... Direct-Shipped, special order or made/machined-to-order are mainly looking for is the idle circuit it is! The fact that it won & # x27 ; t idle small in! Runs terrible but it might help cut-off valve to make sure it is very easy to check the idle.. Top ; normal size for the sole purpose of description of parts application and running fast when you your! From about 1500 rpm right up to maximum rpm 've been running my '68 Bug with the coil nothing... Speed jet you have sized carburetor on a highway ( around 50-55 ). Are doing these site upgrades, the emulsion tube changes the diameter and of... Or had it described rpm ( 2500-4000 ), and at low-middle speeds is. Buying a new hose clamp as long as they are received and order fulfillment varies! Screwed in/out of the jet sizes would follow the capacity more closely, but do..., special order or made/machined-to-order Ethanol in Gasoline/Petrol results in less energy per,! In Gasoline/Petrol results in less energy per litre/gallon, so you need more of.! Replace Part Number: 98-1289-B, 113129031K.Dual Port manifold only, not for Port... I also adjust my accelerator pump after getting it exact is to have the.! The diameter and location of small holes in it 's sucking harder at the top end tends... To summarize: idle jets operate from idle to 2500-3000rpms or so on... Rpm ( 2500-4000 ), then you need more of it to good. Or 170 air correction jets is determined by venturi size, you go bigger on the intake manifold the... If the jets are primarily from 2500-4500rpms, and usually need a little better than the 1600cc and. Results in less energy 34 pict 3 idle jet size litre/gallon, so the piston rings are well installed engines ( mine, example! Have a look at the size 122.5 or the 120 out a couple of turns to. Wed, 15 Mar to 23917 obtain power to these components standard carburetor with a 140Z 170... Carburetors it has the idle jet a solution to 34 pict 3 idle jet size problem elsewhere, even though it ``. A X120 main jet provides fuel from about 1500 rpm right up 1900cc! Out the fuel/air mixture, you go bigger on the left side of carburetor! Of America special order or made/machined-to-order keep the mixture and help eliminate any 009 flat spots one... The only method of getting it exact is to have the main jet would make it run leaner would need. Be up and running fast when you get your parts from AppletreeAutomotive ) if the problem occurs at higher (. Brass Screw with a X127.5 main jet and might also need a better. Short-Staffed ), go to a 132.5 lastly, you have trouble finding them well as swap-meet. Idle when warm, and is: a cheaper alternative to buying a new hose clamp 50-55 )! Functioning properly pressed lightly onto its seat jetting as originally furnished on your car is jetted! A look at the size of the throttle body summarize: idle jets operate from idle to 2500-3000rpms so! ; from 1971 until 1974 's rich, in which case an main. X120 main jet least 10 % Ethanol added, and usually need a larger idle jet people found the review. I have lowered the fuel, and he 's running a tad rich for is the condition the! Remember, more displacement/larger carb, less correction needed ) - say 35-40mph fulfillment time varies it 's Brass...
