I am hearing a odd noise on the higher end of my reving, It sounds like it is on the right side (cam side) of the motor. I think the chain maybe loose how would I thighten it and/or measure the correct slack of the chain?

 

the timing chain has a self adjuster on it. and when its at the end its time to replace the chain, you can however buy manual adjusters for it you will just have to ajust it once in a while