Re: Running your bike in place
You have to consider that the engine is air cooled. That's what the cooling fins are for. It requires some air passing over it to dissipate the heat. I wouldn't suggest running the engine for long periods of time without some means of cooling.
If you have a large fan/blower you could use, that would suffice. In fact that's what I do in my garage. I have the blower section from an old gas furnace and I aim it at the engine. Never had a problem.
Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"