Craftsman Chainsaw Won't Start? Spark Plug Replacement #848

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This video provides step-by-step instructions for replacing the spark plug on Craftsman and Stihl chainsaws. The most common reason for replacing the spark plug is when the chainsaw won’t start or runs poorly and testing the spark plug proves it is defective.

All of the information for this spark plug replacement video is applicable to the following brands: Stihl, Craftsman

Tools used: spark plug wrench included with chainsaw

Step By Step Instructions

1
Before you replace the spark plug in your chainsaw first make sure the engine has cooled and that the on-off switch is in the “off” position.
2
Now unthread the knob securing the air filter cover and pull the cover off.
3
Remove the wire and boot from the spark plug.
4
Use the provided wrench to help loosen the old spark plug then unthread it.
5
Before you install the new spark plug confirm that the spark gap is at manufacturer’s specifications.
6
This chainsaw model requires a 25 thousandths of an inch gap.
7
Now thread the new spark plug into the cylinder head.
8
Be careful not to strip the threads by over tightening.
9
Attach the wire and boot to the new spark plug.
10
Realign the cover and rethread the knob to secure.
11
Replace the wrench in the handle base turn the on-off switch to the “on” position and your chainsaw should be ready for use.
Description
This video provides step-by-step instructions for replacing the spark plug on Craftsman and Stihl chainsaws. The most common reason for replacing the spark plug is when the chainsaw won’t start or runs poorly and testing the spark plug proves it is defective.

All of the information for this spark plug replacement video is applicable to the following brands: Stihl, Craftsman

Tools used: spark plug wrench included with chainsaw
Step-By-Step Instructions
1
Before you replace the spark plug in your chainsaw first make sure the engine has cooled and that the on-off switch is in the “off” position.
2
Now unthread the knob securing the air filter cover and pull the cover off.
3
Remove the wire and boot from the spark plug.
4
Use the provided wrench to help loosen the old spark plug then unthread it.
5
Before you install the new spark plug confirm that the spark gap is at manufacturer’s specifications.
6
This chainsaw model requires a 25 thousandths of an inch gap.
7
Now thread the new spark plug into the cylinder head.
8
Be careful not to strip the threads by over tightening.
9
Attach the wire and boot to the new spark plug.
10
Realign the cover and rethread the knob to secure.
11
Replace the wrench in the handle base turn the on-off switch to the “on” position and your chainsaw should be ready for use.

Applicable Product Model

Parts Needed
Total$0.00

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