DescriptionThis video provides step-by-step repair instructions for replacing the ratchet key on a Honda lawn mower. The most common reason for replacing the key is if the self-propel feature will not engage one or both wheels.
All of the information for this keyreplacement video is applicable to the following brands:
Honda
Tools needed: 12mm socket, snap-ring pliers
Step-By-Step Instructions1
Before you replace a rear wheel ratchet key on your lawn mower first make sure the engine has cooled.
2
Next, you should remove the wire and boot from the spark plug to prevent the engine from accidentally starting.
3
Now lift up the rear of the mower and support it.
4
Use a 12mm socket to unthread the bolt securing the appropriate wheel and remove the wheel.
5
Use snap ring pliers to remove the snap ring securing the pinion gear.
6
Remove the washer and note the orientation of the pinion gear then slide off the gear.
7
If still intact, remove the old ratchet key.
8
Before you install the new ratchet key confirm that the ratchet return spring is intact in the axle then insert the new key.
9
Hold the key in place as you properly align the pinion gear.
10
Slide on the washer and secure the assembly with the snap ring.
11
Insert the mounting bolt through the wheel and slide on the wave washer with the curved edge facing outward followed by the flat washer.
12
Position the dust cover align the wheel assembly then thread and tighten the mounting bolt to secure.
13
With the repair completed reattach the wire and boot to the spark plug and your lawn mower should be ready for use.