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Discussion Starter · #1 ·
Installed a 150 main and a 25 pilot on my 07 z400 and now the idle rpm is way higher than it should be. Any ideas on what could be causing it?

Thanks
 

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Did you try adjusting the idle? What all is done to your quad?
 

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Discussion Starter · #3 ·
How would you go about adjusting the idle, been trying to figure that one out. All I have done is installed those jets, lost the airbox lid, and taken the baffle out.

Thanks for the reply.
 

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Don't forget about the fuel screw, there's a great sticky on that. Could be a combo of both, or your idle is just out of whack.
 
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