jake-scanes Posted July 28, 2007 Share Posted July 28, 2007 right, i have a 2007 yamaha dt50r de restricted. its all completely standard. i drilled the hole out of the exhaust and cut a bigegr hold in the airbox. put a 110 main jet in the carb. its been running fine for about a month but yesterday it emlted the aprk plug. so i went out, got a new iridium plug. and went out today, all went fine..untill about 30mins into the ride. there was the same 'burrr' noise at high revs and the power went, let off the throttle and stopped. waited for 5mins. then started her again. rode her home (about 10mins) then thrashed her down the road, i think it all fouled the plug but not quite meleted. gouing too check in a second. is it running too weak? this is really bugging me its usually on big stright roads, would a 105 jet stop this? thanks guyss Link to comment Share on other sites More sharing options...
Recommended Posts