- Nov 18, 2003
I have a '90 YZ125 (yeah I know its old) and it's mostly stock except for an FMF Fatty pipe, (stock silencer.) I was wondering if it would be a good idea for me to get aftermarket Boyesen Reeds or Power Reeds, and if there will be any noticable gain in power. Also, will I need to adjust my jetting for aftermarket reeds? Any info is appreciated.