hello all i have a 2002 dt125r with full dep pipe i have jsut fitted a k&n style airfilter and now need to rejet but ot sure what size jets to get. when revved the bike bike dies. please help.. james

James, you keep asking the same question, I already said get a 10% bigger than standard and try that. There is one thing you can do meantime and thats check your mixture screw setting, it might possibly need to be turned clockwise about 1/2 turn, this will richen the mixture slightly at up to around 1/2 throttle openings.

...Paul

just go one size up on the jets there are numbers stamped on them that should sort it out

ash