I really want a motorcycle because they're fun and cheap to run. I'm a cheap-ass though so I won't spend more than $1000 on one. That limits me to mostly motorcycles from the 70's and 80's, most of them needing carb work. What kind of gas mileage should I expect from a carburated motorcycle like this? And I pretty much know how an engine/carburator works but how complicated would it be to remove a carb, clean it, and put it back on?