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I have a 416ex with a wiseco 11:1 piston, big gun rev cdi, big gun full race exhaust, would really appreciate any advise and suggestions on jetting for this setup!! Thanks in advance to any input!!
 

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get a 42 pilot jet
helps with thise cold starts.
I live in Kentucky which is somewhere around 700 feet above sea level.
In my stock 400EX with a full HMF exhaust, no air lid and a Uni air filter I run a 190 main. It runs well. I use the keihin hex jets in mine. I would get a few extra. 180 to 200 shoul get you enough to have a few if you got to differnt elevations of if the cold weather makes a change. ATV Parts, ATV Tires, Dirt Bike Parts, Motocross Gear, Motorcycle parts and Motorcycle Tires | Rocky Mountain ATV/MC is a great place to get the Hex jets.
We also have a supporting vendor of the site. Dynojet Research Inc.- Power Commander, Automotive Dynamometers, Motorcycle Dynamometers, ATV Dynamometers, Jetkits, Wideband Commander, Wideband Commander 2, WB2
Never used thier product but I have heard GREAT things!
 
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