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3.3.6 REPLACING THE SPARK PLUG
Use spark plug F6TC, NGK BPR4ES or Champion RN14YC.
Replace the plug once each year. This will help the engine
start easier and run better.
1. Stop the engine and pull the spark plug wire off of the spark plug.
2. Clean the area around the spark plug and remove it from the
cylinder head.
3. Set the spark plug's gap to 0.70-0.80 mm (0.028-0.031 in). Install
the correctly gapped spark plug into the cylinder head and torque
to 15 ft/lbs. (Figure 12).
Figure 12 - Spark Plug Gap
3.3.7 SPARK ARRESTOR
1. Shut off generator and allow the engine and muffler to cool down
completely before servicing spark arrestor (located on the back
of the muffler).
2. Remove the clamp and spark arrestor screen.
3. Clean the spark arrestor screen with a small wire brush.
4. Replace the spark arrestor if it is damaged.
5. Installation of the spark arrestor screen is the reverse of the
removal.
3.4 SERVICE AIR FILTER
The engine will not run properly and may be damaged if using a dirty
air filter. Clean the air filter once a year (Figure 13). Clean or replace
more often if operating under dusty conditions.
1. Remove air filter cover.
2. Wash in soapy water. Squeeze filter dry in clean cloth (DO NOT
TWIST).
3. Clean air filter cover before re-installing it.
Figure 13 - Air Filter
Air Cleaner Cover
Air Filter
3.5 VALVE CLEARANCE
• Intake — 0.10 ± 0.02 mm (cold), (0.004" ± 0.001" in)
• Exhaust — 0.15 ± 0.02 mm (cold) (0.006" ± 0.001" in)
After the first 50 hours of operation, check the valve clearance in
the engine and adjust if necessary.
Important: If feeling uncomfortable about doing this procedure or
the proper tools are not available, please take the generator to the
nearest service center to have the valve clearance adjusted. This is a
very important step to ensure longest life for the engine.
3.6 GENERAL
The generator should be started at least once every 30 days and be
allowed to run at least 30 minutes. If this cannot be done and the unit
must be stored for more than 30 days, use the following information
as a guide to prepare it for storage.
NEVER store engine with fuel in tank indoors
or in enclosed, poorly ventilated areas where
fumes may reach an open flame, spark or pilot
light as on a furnace, water heater, clothes
dryer or other gas appliance.
Maintenance