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i have an 05 500m and it has dual 2in snorkles and it has no power and it backfires allot whats up
:sos:
 

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Sounds like your running lean, just a guess, but if you didnt rejet and now its colder it will be much more noticable,,,did you rejet when you did the snorks?
 

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try covering part of the intake and see how it runs
 

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You just need to work on your jetting. There is a sticky about it on this site. It will tell you how to do it.
 

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On a guess I would say start with a 45 pilot, a couple shims on your needle if you don't have a dyno jet needle and a main jet at 160. What type of muffler are you running?

WC
 

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Or an easy fix is put a 1.5 inch reducer on the end of the airbox snorkel
 

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<div class='quotetop'>QUOTE (V2RIDER @ Mar 5 2007, 05:02 PM) <{POST_SNAPBACK}></div>
Or an easy fix is put a 1.5 inch reducer on the end of the airbox snorkel[/b]

V2 Rider hit it on the head. The hose between the stock air intake and the air filter box have an indentation to fit over the framework that relates to a 1.5" restriction. Pop in an a reducer on the end and you'll be all set.
 

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I think it has dual 2" snorkels.

WC
 

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<div class='quotetop'>QUOTE (walkingcrow @ Mar 5 2007, 09:24 PM) <{POST_SNAPBACK}></div>
I think it has dual 2" snorkels.

WC[/b]


Yes, but the other is just a belt, or tranny snorkle, which could be 10" wide and not make a difference
 

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Like what has been said is you will have to rejet to get it to run right. When adding more air from the snorkles you will also have to add more fuel to keep the proper air:fuel ratio.
 

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Rejetting will work as has been mentioned. However the quicker, cheaper and easier way it to do it is, just add the 1.5" reducer back into the air intake and he will be all set.
 
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