How do you start a mower for the first time? For push and self-propelled mowers, you'll want to locate the priming button on the motor and push it 3 times. This provides the engine with enough fuel to get started since they still use a carburetor rather than a fuel-injection system....
a machined billet aluminum starter pulley on the crankshaft PTO end, then use a 2 wheel remote starter cart with an automotive or tractor starter motor with a V-belt pulley, high amperage push-button [starter] switch and an automotive 12 volt battery motor to crank the engine to start it....