jetting yamaha blaster

[shawn_606]

i have a 02 blaster new motor work 210cc 3+stoker kit new top end toomey exhaust t5 k&n air filter air box lid is off and my elevation is 600 feet.i was wondering what should i jet it out to.

 

[Braaaptor]

Start with about a 330 main and maybe a 35 pilot and see how it runs. Do some searching on here for 'how to read a spark plug' and 'plug chop' to see how close this jetting is. It will likely be a bit rich, which is good.