Sounds like it's been running way to lean and it desperately needs upjetting. What did the spark plug look like?
the spark plug looked too learn to me, i have a stage 6 exhaust aswell what size jet would you recommend ?
that's why it burt a hole in your piston , you probably need something around a 72ish main jet. To get the best out of your 70 kit I would recomend a larger carb , a 17.5 delorto would be ideal. What exhaust does it have?
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