John,
Saw on the RW Forum you have now admitted to going the 120hp Yamaha way, good on you there!! I'm going to go with the 130hp FI version. Will share my experiences with you. Not competing with anyone, it's for my own machine only.
Did Todd send you an engine with a crank in it. Have you been able to confirm that the Mini-500 clutch spindle #0172 slips straight onto the Yamaha taper, or does it have to be re-machined to clear the Yamaha casing? I see that as my biggest "worry", as I don't have an engine yet. Todd and some other guy's are on the lookout for a motor for me, but no joy yet. No motor - no conversion for me. I'm struggling to find one, but will eventually get it. I have already sold my 582, I'm committed to getting a Yamaha now.
Regards,
Francois