2002 TB 250 mikuni 35mm Carb Issues
 

Hey Guys i just got my Trailblazer 250 back i bored it out 1 mm and have a hot seat pipe and oil block off also have a mikuni 35tmx flatside and when i put it on the quad would just sputter when i went to give it full throttle i think its too rich i checked the main jet and its a 340 which i way too big i think so i put on my stock carb which has a 155 main jet and the bike runs fine other then i have a dead spot from take off like slow throttle response or a bog i would really like to use the bigger carb but i am not sure what to do try smaller main jet ? anyone have any input on the bigger carb or how to tune the stock carb will be great thank

i would guess you have way to big of a jet in there for sure. it takes alot of testing sometimes to get it right when dealing w/ another carb and a flat slie is totally differnt(better imo) then the round and setting are differnt for sure.