youve all probs heard this about a millions times by now, but im getting a little rattling noise when im riding slowly about 4k revs... sounds like a chain tapping the engine casing. it doesnt always do it. But i know its there.
Can anyone point me in the right direction please? im trying to find out about my tensioner. where is it? how to get to it? and how to tell its wear?
If anyone could answer these questions i would much appreciate it! Or maybe its not the tensioner?

cheers, Mike