REV Chassis - Performance and Trail Models
I have a 2007 MXZ/XRS 800. I have been using the owner's manual plug gap of .31, but have been told to use .20 or 5mm. It is a carb engine and I am using NGK BR9ECS or BR9ECS-5 plugs.
What is the correct gap? It has been running fine with .31, but I wouldn't mind a little more performance...