Do you mean the spring and bar connecting the carb. to the bar next to the carb. If so how would I do it. Thanks
Hell I don't know. Around here you chat up a hundred posts and WHAM you get senior status an overnight veteran. I have a hard time explaining things in words so bear with me.
You know the throttle grip. there is a cable that comes out of it. slide the cover off the cable and then turn the cable either in or out (try doing this while the bike is running preferably on blocks or something) it's the same like you would do on you pedal bike. doing this will pick up any slack. if it's too tight you will know because the bike will want to run away.
i would check what everyone else is mentioning particularly the chain oddly enough even though the clutch should not be engaging maybe your idle set to high but you would know- is the motor screaming when you start it up or does it rumble mildly?
When you start the bike it should just sit there and run on its own.