We have a gallon thinner can with a 12v electric pump strapped to the carrying handle with a big hose clamp. There is an inlet tube from pump through a hole punched in the top of the can and the outlet is a rubber hose that runs to carb. Our "starter pack" also has a 12v small battery (motorcycle, mower) in case vehicle has different voltage. Has been used hundreds of times for reasons ranging from no tank on vehicle to not wanting to pump what might be in tank/lines into carb. In your case it would fire the engine so you could conduct any test you desired. It can even be used to find how many miles one will go on an EXACT gallon of gas. Very handy tool.
