Champion — Cleaning and Adjusting the Spark Plug(s)
Maintenance
From a Champion operator's manual — check it applies to your exact model before use.
Procedure
- Remove spark plug cable from spark plug
- Use 13/16 in. (21 mm) socket to remove plug
- Inspect electrode, must be clean and not worn
- Set spark plug gap within limits
- Thread plug into engine
- Install plug with socket tool
- Attach spark plug wire
Tools required
- 13/16 in. (21 mm) socket Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- gap 0.028-0.031 in. (0.7-0.8 mm)
Source: Champion operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.