Magneto and belts

[rotorwrench]

There is a caveat to using magnetos. They don't generally have any way to change the spark advance. Aircraft use them but they pretty much run at a fixed RPM for the most part. They have to have a starting aid on at least one mag that retards the spark or they will kick back. Most folks that run them are using them for racing. Fuel mileage suffers if there is no load control to retard the spark. I'm not saying don't use one but there may be regrets later on if you do.