Product Manual

MAINTENANCE
Good maintenance is essential for safe, economical and trouble-free operation. It will also help
reduce air pollution.
Improper maintenance or failure to correct a problem before operation can
cause a malfunction in which you can be seriously injured or killed. Always
follow the inspection and maintenance recommendations and schedules in
this instruction manual.
Maintenance Safety
 Make sure the engine is off before you begin any maintenance or repairs.
 Let the engine and exhaust system cool before touching.
 To reduce the possibility of fire or explosion, be careful when working around gasoline. Use
only a nonflammable solvent, not gasoline, to clean parts. Keep cigarettes, sparks and flames
away from all fuel-related parts.
Maintenance Schedule
Remember that this schedule is based on the assumption that your machine will be used for its
designed purpose. Sustained high-load or high-temperature operation, or use in unusually wet or
dusty conditions, will require more frequent service.
REGULAR SERVICE PERIOD (2)
Before
Each Use
First
Month or
20 Hours
Every 3
Months or
50 Hours
Every 6
Months or
100 Hours
Every
year or
300
Hours
ITEM
Performed at every indicated month or
operating hour interval, whichever
comes first

Engine Oil
Check

Change



Air Filter
Check

Change
 (1)

Sediment Cup
Clean


Spark Plug
Check

Change

Spark Arrester
Clean


Idle Speed
Check-Adjust


Valve Clearance
Check-Adjust


Combustion
Chamber
Clean After every 500 hours

Fuel tank and filter
Clean


Fuel Tube
Check
Every 2 years (replace if necessary)
(1) Service more frequently when used in dusty areas.
(2) For commercial use, log hours of operation to determine proper maintenance intervals.
Engine Oil Change
Drain the oil while the engine is warm to assure rapid and complete draining.
 Remove the drain plug and sealing washer, remove the oil filler cap and drain the oil.
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