Firman P05701 — Spark Plug Maintenance
Maintenance
For the Firman P05701, from the Firman owner's manual.
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Procedure
- Remove spark plug cap.
- Remove spark plug using provided wrench.
- Inspect spark plug for damage and clean with wire brush.
- Adjust electrode gap to 0.7 to 0.8 mm (0.028 to 0.031 in).
- Seat spark plug and thread by hand to prevent cross threading.
- Tighten plug with provided wrench and put cap back on.
Tools required
- Provided wrench Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Gap: 0.7 to 0.8 mm (0.028 to 0.031 in)
Source: Firman owner'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.