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392 with 39mm PWK


hughmyron

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I have them, but allways have couldnt tell u if there would be a diffrence, asphault is all about the clutch tune, I leave at consistant rpm and adjust base pressure for best 60ft, my suggestion is dial in jetting 100% before u tune any other aspect of bike, tuning clutch and chassis all changes on engine tune, take your time write shit down if done rite it will get easier to get down the track

 

Thanks alot man, its a trail bike with a stock trans with tricks so it wont be anything crazy. itll be a street racing bike probbaly wont ever see the track. We have the 1/8th and 1/4 marked at my buddies shop, we will clock it and ill report back.

Edited by hughmyron
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  • 2 weeks later...

Well i ended up with 165 main jet its caramelish color after a 1/4 pass, tried a 52 pilot and i had to leave the air screw closed because it would drive funny. Now heres my main issue, if im lets say chillen well under the powerband in whatever gear and i just happen to go WOT it completely falls on its face and sounds like if you just turned it off. It only does this when i go WOT, if i creep into it it wont do it. I just got back from my friends house we were going to start riding and literally 10 secs down the block i go half throttle to pick up speed and the bike falls on its face and turned off and didn't turn back on, we tried to push start it, we checked it had spark. Does this sound like a needle position issue?

Edited by hughmyron
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