I have a Stihl FS75 trimmer engine and a MS 250 chainsaw engine. Which one of these would be the best to use on a project? I will be using these as stock with maybe a carb upgrade. I believe the trimmer turns counter clockwise and the saw turns clockwise, facing the out put shaft.
If I am not correct please chime in here. Looking forward to you responses.
Thank you,
-Gary

On the saw, use the starter side to drive your prop and it will be CCW

Hey thanks. Which engine would be better for rc use?
-Gary

I'm not familiar with the engines.

Send us some pictures and some of us could tell

Right now I'm thinking the chain saw unless it has a lot of chain saw burden on the crankcase