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Honda Small Engine On/Off Switch Replacement #35120-Z0T-851

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This video provides step-by-step repair instructions for replacing the on/off switch on a Honda small engine (which is commonly found in lawn mowers, riding tractors, zero-turn radius mowers, wheeled edgers, pressure washers, and generators). The most common reasons for replacing the on/off switch are when the switch does not snap firmly into the “on” or “off” positions, when the mower is hard to start, or when the mower won’t start at all.

All of the information for this on/off switch replacement video is applicable to the following brands:
Honda

Tools needed: socket wrench, snap ring pliers, multi screwdriver, flat head bit

Step By Step Instructions

1
Before you begin the replacement, make sure the engine has cooled remove the wire and boot from the spark plug and turn off the fuel valve.
2
Your first step is to use a small flathead screwdriver to help pry open the wire retainer securing the wiring loom.
3
Disconnect the two leads of the old switch assembly.
4
Next, remove the mounting bolts securing the engine shroud.
5
Pull the shroud off and straighten the grounding tab. now pull the old switch out.
6
Install the new on/off switch by aligning the notch in the switch with the slot in the shroud and snap the component into place.
7
Bend the grounding tab back to secure.
8
Reposition the shroud and secure the bolts.
9
Connect the two leads of the switch assembly and secure the wires in the retainer.
10
You can now turn the fuel valve back on and reattach the spark plug wire and boot.
Description
This video provides step-by-step repair instructions for replacing the on/off switch on a Honda small engine (which is commonly found in lawn mowers, riding tractors, zero-turn radius mowers, wheeled edgers, pressure washers, and generators). The most common reasons for replacing the on/off switch are when the switch does not snap firmly into the “on” or “off” positions, when the mower is hard to start, or when the mower won’t start at all.

All of the information for this on/off switch replacement video is applicable to the following brands:
Honda

Tools needed: socket wrench, snap ring pliers, multi screwdriver, flat head bit
Step-By-Step Instructions
1
Before you begin the replacement, make sure the engine has cooled remove the wire and boot from the spark plug and turn off the fuel valve.
2
Your first step is to use a small flathead screwdriver to help pry open the wire retainer securing the wiring loom.
3
Disconnect the two leads of the old switch assembly.
4
Next, remove the mounting bolts securing the engine shroud.
5
Pull the shroud off and straighten the grounding tab. now pull the old switch out.
6
Install the new on/off switch by aligning the notch in the switch with the slot in the shroud and snap the component into place.
7
Bend the grounding tab back to secure.
8
Reposition the shroud and secure the bolts.
9
Connect the two leads of the switch assembly and secure the wires in the retainer.
10
You can now turn the fuel valve back on and reattach the spark plug wire and boot.

Applicable Product Model

Parts Needed
Total$0.00

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