When I was a kid we had four stroke kawasaki motorcycle (circa 1980 or so) that we rode in a dirt lot next to our house. We ran out of gas so decided to use the most flammible thing we could find for fuel - used paint thinner! The bike actually ran as long as it was wide open.
Around this time the clutch cable broke. Again, being the ingenious kids we were we attached vice grips to the broken cable. To get the leverage to actuate the clutch you would have to wrap the vice grips around the handle bars and turn them full lock. As you would straighten out the wheel the clutch would disengage. Made for some wild rides keeping the throttle wide open while trying to release the clutch and get the bike rolling without spinning out or control.......