my yamaha blaster is .60 over and it had a 160 in the main jet and i dident change it at all and i moved up the throttle slide clip. and now when i am in 5th gear throttle all the way it starts to bogg down need help !!
go up in size my blaster is 60 over also, im running a 280 jet and it seems to be about perfect for me. go to the dealer and buy like a 280, 290, and 300 then try each one.