400ex jetting and mods
#1
400ex jetting and mods
I know this has been asked before but I'm new to the forums and generally new to sport quads. I bought a 400ex and the top end needs rebuilt. I got some advice from my friends who have been around these machines and have done rebuilds in the past. I ordered and a 416 top end, stage two hotcam, wiseco 10:1 piston kit, and commetic gasket set. The bike has a full big gun exhaust. Im just not sure on the jetting. Its already jetted from the previous 426 with stock cam but ran a little rich. Any suggestions? Also any other mod ideas? It has a k&n air filter and open top airbox.
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09-23-2015 06:23 AM
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