Question about K and N Yamaha Big Bear Yfm350fw Air Filter

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How to adjust carburator on big bear 400

Throughly cleaned carb adj valves pipe is glowing red backfires and misses ran the pilot jet out 1 1/2 what do i do please help i need it in a bad way tightend the boot on the carb engine side even put a new clamp on cant tell if its missing or backfireing through the carb does backfire through tail pipe was backfireing through carb for shure before i messed with the intake boot

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Posted on Jan 02, 2017

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SOURCE: Why is my 2003 Yamaha

carb is ajusted to lean it needs to be richend the reason for the pipe glowing is its running hot due to the fact the carb is to lean discontinue use or you might burn up the motor!

Posted on Nov 21, 2010

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