Replacing a Starter Motor on a Riding Lawn Mower

This video shows how to replace the starter motor on a riding lawn mower. The starter motor spins the flywheel to start the engine when you turn the start key. If the starter motor doesn’t spin when you turn the key, replace it with a part that fits your model. If you hear the starter solenoid click but don’t hear the starter motor run, watch this riding mower troubleshooting video to help you diagnose the problem.

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The video includes these parts and tools. Look up your model to make sure you get the right parts for your mower.
Starter motor

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The first step to replacing the starter motor is to turn the ignition switch off and remove the key. Lift the seat. Remove the bolt connecting the negative cable to the battery and tuck the battery cable away so it doesn’t touch the battery post. Lift the mower hood. We’ve removed the hood to give you a better view. Remove the air duct mounting screws and pull off the air duct. Rotate each air filter cover retaining knob counterclockwise and pull off the air filter cover. Remove the air filter. Remove the air filter housing screw. Remove the front blower housing mounting bolts. Remove the rear blower housing mounting bolts. Lift off the blower housing. Remove the lower dash fastener and pull off the lower dash. Remove the wire mounting nut and pull off the starter motor wire. Remove the starter motor mounting bolts. A wire retainer comes off when you remove the left bolt. Pull off the starter motor. Position the new starter motor on the engine and attach it with the right mounting bolt. Position the wire retainer and the left bolt and then route the wires through the retainer. Install and tighten the left mounting bolt. Attach the starter motor wire and connect it with the mounting nut. Reinstall the lower dash and secure it with the fastener. Position the blower housing on the engine and align the air diverter in the housing. Reinstall the blower housing mounting bolts. Reinstall the air filter housing screw. Reinstall the air filter. Position the air filter cover on the engine and turn each retaining knob clockwise on the cover. Reinstall the air duct and secure it with the mounting screws. Reconnect the negative cable to the negative battery terminal. Lower the seat.



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