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( c) Inspect spark plug for damage and clean with a wire brush before reinstalling. Replace if
damaged.
(d) Adjust the electrode gap to 0.028 - 0.031 in. (0.7 - 0.8 mm).
(e) Seat spark plug in position and thread by hand to prevent cross threading.
(f) Tighten plug with provided wrench and put the spark plug boot back on spark plug.
SPARK PLUG: TORCH F6RTC, NGK BPR6ES, CHAMPION RN9YC or equivalent.
Maintenance Valve Clearance
Intake:
0.0051 – 0.0067 in. 0.13 – 0.17 mm
Exhaust: 0.0071 – 0.0087 in. (0.18 – 0.22 mm)
Muffler and Spark Arrester
WARNING! Contact with muffler area could cause burns resulting in serious injury.
• •
Do not tough hot parts.
It is a violation of California Public Resource Code, Section 4442, to use or operate the engine
on any forest-covered, brush-covered, or grass-covered land unless the exhaust system is
equipped with a spark arrester, as defined in Section 4442, maintained in effective working
order.
Other states or federal jurisdictions may have similar laws, reference Federal
Regulation 36 CFR Part 261.52.
English
A
B
SIDE ELECTRODE
(
)
Maintenance - Storage
0.028 - 0.031 in.
(0.7 - 0.8 mm)
SEALING
WASHER
22
A- Spark plug
B- Spark plug boot
Customer Service: 1-844-FIRMAN1
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