Hello, been away for a few days. It has had a rebore and piston has been replaced as it was previously blown (hole in the top) head gaskets renewed inner and outer. Had the carb off and cleaned all jets, needle and float also checked the reed valves. I noticed the main jet is size #100, is this too big? (A online service manual states #88) This TZR50 has a Arrow exhaust and a standard air filter.
Rare sprocket is two teeth smaller than standard, front as standard. 45/12
Thanks
Steve