What college course is for Motorcycle technician?

Bodywork is bodywork is bodywork. Going to a College is the right path, someplace that offers a Degree will always be better than a place that only offers a Certificate. It'll get him more job opportunities in life, better pay, and just a better life in general. But any school that offers automotive degrees with also have a small engine class, one can then choose to focus on motorcycles at that point. There will be more money in the Auto side of things at first (think of it as the bread and butter, the stable means to bring in rent), but if he can create unique creations that people like/want to buy with motorcycles, it could be a large boost to the income, though unsteady.