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Discussion Starter · #1 ·
When i got to the dunes i ran my quad and it wouldn't idle without giving it gas. While i was riding around the dunes my quad would bog at random times. You would be in 3rd gear on the power band, then all of the sudden it would start bogging.
After about an hour of riding, my quad started to bog really bad then stopped and died. I pulled out the sparkplug(BR9EG) and it was covered in oil and fowled.
I pulled my spare out(BR8ES), got about 20min on it. pulled the plug out again and it was gray(Fried).
My ratio is 40:1 with premium gas and Motul 510 Synthetic.
I don't know what to do from this point on? :mad::( Please Help!.... Thanks!
IMG_2945.jpg
 

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jetting? a little too rich? whats the air screw at? mine at sea level would have a little trouble idling, so i adjusted my air screw and it was perfect after that.
 

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you most likely have a seal leaking . sucking oil down hill sucking air up hill it will be imposable to jet untill you get leak fixed do a leak down test before it melts down the piston. the plug in the first pic is that a hotter heat range plug and a diferent kind than the oil an fuel fouled plug ?
 
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