Well if your cheap like me, All I do to check spark if there's no starter. Is take a peice of rope and wind it counter clockwise around the pulley. Set the plug on a clean metal surface and give it a pull. If it has spark, All I do is put a big socket on the flywheel nut with a 3'' extension, And an electric drill. Then just spray a little ether in the intake, And crank it over with the drill and as soon as the engine catches pull the drill out. If the engine doesn't sound like a wood pecker is in it, It's probably a good motor. Just give the carb a good cleaning, And run the motor for a while on gasoline. And if it runs good with no noises, knocks, or smoke, Then you can get a starter for it. Those OH160 Tecumsehs are pretty forgiving, They're very reliable and well built. So if you decide to keep it, They're one **** of a work horse. Hope this helped, - Brad