worked on the carbs,,, might be making a lil more power,,, opened it up in 3rd,, and after it starts buildin up more and more rpms,,, clutch slipped... went back to 5th,, rolled on it hard at lower rpms,,,, no slippage.... think the low temps,, or not riding it for awhile? or should i use an oil additive? Or might there be another adjustment besides at the handlebar? 83a