Blaster build help

Atv_nh

New Member
Jul 10, 2018
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Recently just finished rebulilding my 04 blaster new 240 kit, keihin 33mm pwk, aluminum high performance airbox, I have my pilot (jet size 50) and main jet(jet size 158) running perfectly, wot is with in 2-4 mm of dark brown-black, but im at a total loss with jetting the needle end, once warm it bogs out around 1/2-3/4 throttle at gears 4 and up, tried the needle all between 5th-3rd clip and no help anywheres also had the gearing up at 14-39 dropped down to 14-40 to see if that was the issue to no help, please leave your input
 
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Thanks for posting your solution.​

While not a complicated machine, they still have precise needs. 1~2 mm isn't much , but made all the difference in the world.