misfiring

Hello chaps. I just want to start by saying what an awesome bunch of fellows you are, a little grouchy at times but I like that too, as long as i'm not at the receiving end. Anyway, I have done a resto-mod (I hate that term) on a CX500 custom 1980 and its my first one and you have been fantastic...

I'm in the process of purchasing an original owner 1983 cx650 custom, it looks great and everything vital works. It has a misfire in the right cylinder, rendering it unsafe to drive (tops out at 40mph not to mention the risk of piston damage). I called my local Service Honda and the ingnition...