Need Help Fast !!!

[IRONFLIGHT2]

I GOT AN 07 LTR WITH A YOSH PIPE A PIM AND A K&N FILTER THATS IT. IT WILL IDEL FINE FOREVER BUT AS SOON AS YOU GET ON THE GAS IT BOGS INSTANTLY I CHANGED THE AIR FILTER CLEANED THE THROTTLE BODY CLEANED THE FUEL FILTER UNDER THE TANK CHANGED THE SPARK PLUG AND ITS STILL DOING THE EXACT SAME THING. ANY IDEAS?

[copperhead]

I hope someone can answer this posted question because I'm having the exact same problem on my daughters polaris 90 scrambler. If any one knows how to help this problem , please post responce.

[steve181]

Did you jet it when you added the Yoshi exhaust?

[86 Quad R]

sounds as tho its leaning out on the low just off idle. may need to change the fuel mapping. you have a pm:cool: