Left is original, right is a mystery.
It's a Yamaha cam for my trusted skorpion sport. Stamped in the timing chain side is a code "KCJR6". Presumably it is a regrinded oem camshaft; the base circle changed from 30.1 mm into 26.9/28.2 mm (intake/exhaust).
Intake: 7.3 mm (5.74 mm stock) + 27.2% lift
Exhaust: 7.1 mm (6.55 mm stock) + 8.4% lift
Duration seems to be longer as well.
Keeper or room 101?
