2007 Yamaha Grizzly 450 Problems???

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Sep 6, 2013 | 11:28 PM

Kyle 713

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2007 Yamaha Grizzly 450 Problems???

I have a 2007 Yamaha Grizzly 450 and it backfires when i let go off the throttle and i am pretty sure that isn't normal so i was wondering what i could do to fix that or what would be causing the problem???

Sep 7, 2013 | 04:46 AM

xAtvRiderx

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If you are going very fast and stop quickly without your brakes..just engine brake..it's normal

Sep 7, 2013 | 11:50 AM

TLC

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Its a 2007 maybe its time for a valve (Intake and exhaust) adjustment. Not hard to do .

Intake

Exhaust

Sep 9, 2013 | 07:23 PM

Oldbear

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Joined: Nov 2011

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From: State Center, Iowa

Some times when the guts are out of the muffler theirs no back pressure and they tend to do that.

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