I'm sure this topic has been beat to death but the thread at the top of the page won't open for me. Anyway I need some help with checking my valves, I am starting to get a little noise from what sounds like the rear cyclinder so I want to check my valves, the bike has 13,000 miles on it. I know my way around an engine I have been working on dirt bikes and quads for years I have rebuilt both a 4t and a 2t engine, however I have never messed with a twin cylinder bike. Anyway, how hard is it to check/adjust the valves on my bike. I am just a little apprehensive on these.