[stemmol]

Well i just did a total rebuild on a 86 trx 250r. New hot rods crank all bearings/seals. I changed the carb to a 38 pwk airstryker. CEJ needle, middle clip 48 pilot, 165 main. 2-1/2 turns out on air/fuel. v force 3 reed. It runs ok in neutral idles fine. When i go WOT it bogs down badly if i hold it picks up then at the top of the powerband it seems i get detonation. At this point im so fustrated i dont know what to do next. Please give me some info. Thanks

 

[bsilver]

Send mindcrime a PM. The dude can tune the thing just by hearing it over the phone!

 

[86 Quad R]

did you perform a leak down test on it after the build? have you done a compression check since breakin? have you tried a wot plug chop to see if its rich or lean with the 165 main?