KTM midrange power

[KDXer]

I recently replaced my stock pipe with a FMF Gnarly on my 01 200exc. Bottom and top end is fine, but midrange is not crisp and clean as it used to be. I dropped the needle one clip (now in top position), which improved the situation slightly, but mid is still not clean as crisp as it was with the stock pipe.

What must I do next to clean up the mid range ?

Do any body have experience with jetting in general when switching from the stock to Gnarly pipe ?

 

[KTA]

Well the Gnarly pipe has done what it was designed to do. I'm not sure this is the best way to go about it, but I would try to adjust the powervalve. Make the valve open a little earlier and it should help you resolve your problem.

 

[Fred T]

Best pipe for a 200 is the stock for the reason you have discovered. your problem is the FMF pipe.

 

[agitt73]

NO PROBLEMS WITH MY 02 WITH THE FMF PIPE
42p 178M STOCK NEEDLE 2 DOWN FROM THE TOP