Cheflen
Active Member
So I’m rebuilding the carbs on my 657x right now with a genuine Mikuni kit that a bought last year for something else, the previous owner removed the OEM springs when they tried rebuilding it with a knock off kit. The pop off I tested was way up in the 40s, and I know the 657x is supposed to be between 16-21psi. Does anyone know which spring is the correct one? Also I lost the springs somehow on the kit I bought so is there any way I can just get the springs somewhere? Thanks in advance.