Are there any known motorcycle/moped/minibike engines worth converting? It all comes down to price and weight in the end, but I wondered if there are some motors that are right for big slow scale flying planes . I personally have my 1/3 pup, and it will be begging for some extra weight up front. It seems someone might have seen them done... I know I have heard of BIG saw and Husqvarna cycle engines being used on enormous planes...

I wouldn't even mind a four cycle motor that has to be mounted up right and flown that way most of the time.. Just bored and curious, thought I'd ask..

By the way working on my first gas weedie crackerbox boat, its coming along, and I found a small weedeater in someones curbside garbage today while making a parts run... GUESS what was wrong with it? ha ha ha ha the plastic trigger was broken !! poured in gas, primed..BBBBRRRAAAAAHHHHHHHHH purred like a kitten....