User Manual

14 Owner’s Manual for Portable Generator
Figure 4-3. Air Filter Assembly
Service Spark Plug
To service spark plug:
1. Clean area around spark plug.
2. Remove and inspect spark plug.
3. Inspect electrode gap with wire feeler
gauge and reset spark plug gap to 0.028 -
0.031 in (0.70 - 0.80 mm). See Figure 4-4.
Figure 4-4. Spark Plug
NOTE: Replace spark plug if electrodes are
pitted, burned or porcelain is cracked. Use
ONLY recommended replacement plug. See
Specifications.
4. Install spark plug finger tight, and tighten
an additional 3/8 to 1/2 turn using spark
plug wrench.
Inspect Muffler and Spark
Arrestor
NOTE: It is a violation of California Public
Resource Code, Section 4442, to use or oper-
ate the engine on any forest-covered, brush-
covered, or grass-covered land unless the
exhaust system is equipped with a spark
arrestor, as defined in Section 4442, main-
tained in effective working order. Other states
or federal jurisdictions may have similar laws.
Contact original equipment manufacturer,
retailer, or dealer to obtain a spark arrestor
designed for exhaust system installed on this
engine.
NOTE: Use ONLY original equipment replace-
ment parts.
Inspect muffler for cracks, corrosion, or other
damage. Remove spark arrestor, if equipped,
inspect for damage or carbon blockage.
Replace parts as required.
Inspect Spark Arrestor Screen
1. Loosen clamp (A) and remove screw. See
Figure 4-5.
2. Inspect screen (B) and replace if torn, per-
forated or otherwise damaged. If screen is
not damaged, clean with commercial sol-
vent.
3. Replace spark arrestor cone (C) and
screen (B). Secure with clamp (A) and
screw.
Figure 4-5. Spark Arrestor Screen
Valve Clearance
IMPORTANT NOTE: If uncomfortable about
doing this procedure, or the proper tools
are not available, take generator to the
nearest service center to have valve clear-
ance adjusted.
Check valve clearance after the first fifty-hours
of operation. Adjust as necessary.
• Intake — 0.15 ± 0.02mm (cold), (0.006 ±
0.0008 in)
• Exhaust — 0.20 ± 0.02mm (cold) (0.008 ±
0.0008 in)
000630
A
B
C
000211
(000108)
WARNING
Hot Surfaces. When operating machine, do not
touch hot surfaces. Keep machine away from
combustibles during use. Hot surfaces
could result in severe burns or fire.
000631
A
B
C