woodsguy2000
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- Apr 24, 2001
- 192
- 0
I have a friend with a 250 4stroke. My question is it runs find until he stops for a long break and then tries to restart. It then backfires hard enough to knock the carb out of the intake boot. Any ideas would be appreciated. The bike was bought used and he has only had a week, so don't know how long the problem has existed. Also it is a Yamaha. Thanks Rob