My blaster Not reviving in gear

Yamablaster200

New Member
Aug 13, 2019
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I just got a Yamaha blaster with a fresh rebuild. I ran it thru 3 heat cycles and it revd up all the way in neutral but when I went to ride it I threw it in 1st and it goes about 5mph throttle wide open and it revs about 1/4 of the way to limeter. What could it be? Will take video if asked