Sorry to butt in and change the subject but I have a few questions. I just got a Sirio .12 TRP Pro. It has a blue head I thought they were supposed to be black. Is this last years model or something? Also What should i do with the silver insert in the carb? Ok now for the real Question. What size are the 2 bearing in the crankcase? I'm planning on replacing them with ceramic ones.
Thanx