I have a 2008 crf50 for my son. We recently added an FMF 4.0 muffler and a Uni pod filter (2 stage). Should I make any adjustments to the jetting,needle,or fuel screw??
This is all new to me so I appreciate any advise. I understand that this will not make a Huge difference but I still want the bike to run well.
Thanks in advance.