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Yamaha Rhino Performance Discussions Yamaha Rhino performance discussions.
Engine mods, CDI boxes, exhausts, etc.

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post #1 of 34 (permalink) Old 03-16-2009, 11:43 AM Thread Starter
 
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Backfire

I am having problems with my stock exhaust. The bracket that holds the two pipes together keeps coming apart. This weekend, at Gorman, the guys helped me repair it. Bit of a chore because the 4 seater cage has to come off, but we got it done. Added new gasket (the new one I put in a few months back was gone), rebolted everything back down with additional bolts and nuts, and put her back together. Everything seemed to hold fine. Sound was back to normal, and no rattle was heard. Only problem, I still get backfire on hard decelleration (sp?). Any ideas?
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post #2 of 34 (permalink) Old 03-16-2009, 12:17 PM
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stock cdi....if that don't work ..try suck starting it from the tip...

Ninja police ????Y Hope you Got a Ninja warrant.... ...
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post #3 of 34 (permalink) Old 03-16-2009, 12:51 PM
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post #4 of 34 (permalink) Old 03-16-2009, 01:09 PM
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tru dat lol....

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post #5 of 34 (permalink) Old 03-16-2009, 01:20 PM Thread Starter
 
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I do have an aftermarket CDI. Backfire was never a problem before the muffler came apart the first time.
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post #6 of 34 (permalink) Old 03-19-2009, 04:48 AM
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Not sure which year Rhino you have but the pre 08 models had a problem developing thin cracks on the header pipe.May be a very thin crack so go over it closely.On deceleration it will cause a lean backfire.
I also had the problem with the pipe seperating between exhaust and header pipe.My fix was to remove the metal strap with the 12mm bolt and place an automotive 1 3/4 muffler clamp in it's place.Leave the bar with the 10mm bolts in combination with the clamp.I have had no problem with mine since then.

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post #7 of 34 (permalink) Old 03-19-2009, 10:44 AM Thread Starter
 
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It is an 07. Pipe seems to be good. Problem I was having was the separation of the two pipes because one of the bolts on the bar kept vibrating loose and disappearing. Hopefully we have got that problem solved, but still getting the backfire. Hopefully we installed the gasket correctly. Someone else suggested re-jetting the carb.
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post #8 of 34 (permalink) Old 03-19-2009, 03:40 PM
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you burnt a valve buy running too lean and now you need motor work done ...get your ass to the PRO SHOP tell JOHN to fix it at any cost that way some KAMPFAG wont beat you out in the dusty desert ...LOL..

THERE IS ALWAYS SOMEONE FASTER

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post #9 of 34 (permalink) Old 03-19-2009, 04:41 PM
 
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we did really????
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post #10 of 34 (permalink) Old 03-19-2009, 04:54 PM
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Quote:
Originally Posted by Hockymom63 View Post
we did really????
it is really a possibility you are real close to john at the PRO SHOP and its probably read for service and a valve adjustment give him a call talk to him he has real helped us over here...and he will not fill you up with shit he is a real nice guy and very honest and great priced

The Pro Shop 714-892-1300 give them a call and then let us all know what you think!!!!

THERE IS ALWAYS SOMEONE FASTER

BUT ONLY A FEW CAN FLY

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