Hi all. I have just registered as I am hopefully going to look at a CB400 Super Four tomorrow for my first bike. I hope this is the right section. I was wondering if there is either a CB400 buying guide, or if any of you could advise me on what specifically to look out for. The bike's 2000MY and done 45k. Will the cam chain tensioner or valve clearances be likely to be needing attention at this mileage? How do I check if they are on their way out?

Thanks for any help in advance.