Green Rider
Member
- May 29, 2002
- 13
- 0
Just bought an FMF Gnarly pipe for my 02 KDX 220. The FMF website recommended a 155 jet so I changed out my stock 145. This produced black smoke, poor performance and all sorts of bad stuff. Can anyone give me a good baseline to start from (main jet, slide, needle, etc etc.)