The 5.8 single was a relatively good single, originally manufactured by A&M until Brison bought them out. At least I think that was the way it went. There were some crank problems towards the end of A&M, but Brison corrected many of them at a later date.

RCIGN1, jump in here anytime you want to straighten me out if I got any of that wrong. It's been a while on the A&M thing, so my memory could be a little faulty there.

Overall though, a 100cc (+/-) single cylinder engine can turn out to be quite a "thumper" creating a lot more vibration that you can ever use, and be rather destructive with your radio gear.