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2007 Yamaha Grizzly 450 Problems???

   
  #1  
Old 09-06-2013, 11:28 PM
Kyle 713's Avatar
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Default 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???
 
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Old 09-07-2013, 04:46 AM
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If you are going very fast and stop quickly without your brakes..just engine brake..it's normal
 
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Old 09-07-2013, 11:50 AM
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Its a 2007 maybe its time for a valve (Intake and exhaust) adjustment. Not hard to do .

Intake

Exhaust
 
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Old 09-09-2013, 07:23 PM
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Some times when the guts are out of the muffler theirs no back pressure and they tend to do that.
 
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