I am so thoroughly disgusted
with those chinese chains and sprockets that I can't stand the thought of another build with them. Here's my idea. A 42cc chain saw engine. I've gotten lots of mounting ideas. My question right now is how to attach a drive roller onto the drive shaft of the engine. Centrifugal clutch and pull starter looks real appealing. That drum sanding drill attachment I thought would make a great friction roller, but how to attach it?

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