lean

I'm just curious what AFR #'s you guys like to see on 4 strokes at different throttle positions and RPM? Idle, Mid-range cruising, WOT, etc There is another thread on TY where some guys are stating they like to see high 10's at WOT. While this is my first 4 stroke, I am not new to turbos. I...

This last weekend my family took a trip down the the Snowy Range to get in some deep snow and learn some new riding area, and for the half of the day on friday we were on our own and didnt get to far off the trail but found some good tree/powder riding. I was riding my 97 RMK and was struggling...

I wanted to start this thread to address the extremely too lean fuel map that Polaris dealers have been installing on every 800 CFI since the engine update came out. I have to admit when I first read the posts here on the 4m related to runability issues for the 800. In the Auto Service world it...