I seen today that lowes has cheap "Bolen" 31cc weed wackers for about $75. I know these are probably cheaper engines,but would one of these work? The also have troy-built ones the same size for just alittle more. I'm thinking an engine this size might work for my yak. I flew it for the first time today with its GMS 1.20 and it is indeed quite underpowered.

So what would you guys think of an engine this size for this plane? Or would smaller 31cc cheap engine just weigh too much and be nothing but junk? I think a 50cc might be too big for this plane I need a motor for though.

Thanks again....all this info is helping.