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  VW Parts Catalog > Carbs & Fuel System >

Main Jet for Solex, Kadron, Brosol, and Bocar Carburetor (sold per EACH)
Main Jet, Solex, Kadron, Brosol, and Bocar Carburetor
 
Aircooled.Net will help you jet your carb(s) properly! We are VW carburetor jetting experts and carry a lot of jets and sizes that other places do not. Often times jets have been drilled and/or reamed to a size different than stamped. If you can't be sure what size jets you are starting with, (i.e. if you don't have tool access to verify jet size), then save yourself a ton of time and troubleshooting by just buying new jets. Solex, Kadron, Brosol, and Bocar Main Jets are screwed into the bottom of the float bowl. Remove the carb top to change them out!
Price: $7.00
Item eligible for Econo/1st Class Mail shipment, min ship charge applies


: SOLEX-MAIN-JET

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Overview More Info
 
Aircooled.Net will help you jet your carb(s) properly! We are VW carburetor jetting experts and carry a lot of jets and sizes that other places do not. Often times jets have been drilled and/or reamed to a size different than stamped. If you can't be sure what size jets you are starting with, (i.e. if you don't have tool access to verify jet size), then save yourself a ton of time and troubleshooting by just buying new jets. Solex, Kadron, Brosol, and Bocar Main Jets are screwed into the bottom of the float bowl. Remove the carb top to change them out!
Item Features
Kadrons, should start with a 125 main, some modified engines will run best with a 130. You will not need larger than this unless you have installed larger than stock venturis into your Kadrons. There are a lot of guys using 135s and larger, but we feel that most of these guys are way too rich. If the engine runs better with larger than a 130 main, it's almost always because the engine is running too cool due to a broken thermostat, or someone has removed it. This means the engine is NEVER WARMED UP, and it needs to run richer to get enough fuel vaporized for combustion. Solex 34-3, Brosol 34-3, or Bocar 34-3, use a 125-130 main jet. Solex, Brosol, or Bocar 30/31 should use a 120-125 main jet. If you are at elevation, your engine will be happier with a smaller main jet. Go down "1" for every 1k' above sea level you are at. So Denver (5k') will be a "-5" from sea level tune, for example. The engine's idle will be based on the IDLE MIXTURE SCREW. It's possible to be idling too lean with a 70 idle jet, and too rich with a 45 idle jet, depending on how the idle mixture screw is adjusted. The idle jet size should be chosen based on how it DRIVES on the progression circuit, which are throttle conditions from off-idle to around 1/3 throttle. Obviously a Wideband or a 5-gas Analyzer are best for this, please read our Wideband Tuning article for more insight!

Related Items...
Solex, Kadron, Brosol, and Bocar Idle Jet (Sold per EACH)
Price: $8.00
Item eligible for Econo/1st Class Mail shipment, min ship charge applies
Solex, Kadron, Brosol, and Bocar Idle Jets
Solex, Kadron, Brosol, and Bocar Idle Jet, Micro Sized
Price: $10.00
Item eligible for Econo/1st Class Mail shipment, min ship charge applies
Solex, Kadron, Brosol, and Bocar Idle Jet, Micro Sized

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