Originally posted by speedy100
I have not had any issue with the new crank in my ZX21........
Ok.....
I just broke mine in today, I must say, as the piston and sleeve are not as tight as I am used from Nova based engines, i'm a bit concerned about the lifespan of the set.......
It only took me about 4 or 5 tanks to run in the engine........
It is running nice, the engine, but I'm curious if I can drive a whole season with it........