Yamaha Blaster jetting


New Member
Mar 20, 2021
Hello, i have an 01 yamaha blaster with a k-n air filter with no lid and a full fmf gold series pipe. i am currently running 240 main jet. i take it down the road and when get into 5th and 6th gear it sounds like it cuts out then starts going again. What could this be? Thanks!
Please STOP riding it until you reject, you are going to burn it up !!
Go to engine/carb forum and find "What jets are you using?"
You'll probably start with a 300 main.

If EVERYTHING was stock you'd need a270 minimum, then you have to add for no lid and better filter. You have to do a plug chop to verify correct jetting