Home Forums Shifter Karts CR 125 Jetting Reply To: CR 125 Jetting

andy graham

I was eves dropping on a conversation at the track over the weekend between some shifter drivers who are also mechanics…they were talking about always reading the piston top as opposed to the plug…I couldnt get specifics, but they were reading the burn pattern on the piston crown using a small scope light down in the plug hole…maybe you know what Im talking about maybe not, but I plan on asking more questions as Ive never heard of taking a reading that way.


just found this: