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A/F Mix--Main Jets Etc.

This is a discussion on A/F Mix--Main Jets Etc. within the Kawasaki KFX700 V-Force forums, part of the Kawasaki ATV Performance / Maintenance / Technical category; I really don't know rip about the main jets and the a/f screw adjustment. and the whole flow of air and fuel. Could someone take ...


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Old 05-25-2009, 05:46 PM   #1
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I really don't know rip about the main jets and the a/f screw adjustment. and the whole flow of air and fuel. Could someone take a minute and just give a brief 101 on it. Also which settings make the engine run cooler? --Thanks

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Old 05-26-2009, 04:38 PM   #2
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air/fuel screw-clockwise leans it out and counter clockwise will richen it, if you need more you need to change your main jet.
main jet-controls your mid to high rpm fuel flow.
pilot/slow jet-controls your low rpm fuel flow.
The richer the fuel mixture the cooler the engine is going to run. When leaned out the motor will get hot fast due to the lack of fuel to cool the piston off.
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Old 05-26-2009, 05:43 PM   #3
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Old 06-02-2009, 10:37 PM   #4
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Default some good reading
How to Jet a Dirt Bike or ATV Carburetor Article on 4Strokes.com
CV Carburetor Modifications
Motorcycle Jet Kits & Carburetion Basics - Motorcycle Cruiser Magazine
Care & Feeding Of The Keihin Carb
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