17
Maintenance
WARNING
ACCIDENTAL STARTING: Turn the fuel selector to the "OFF" position, wait for the engine to cool, and disconnect the spark plug cable before 
performing any inspection, maintenance, or cleaning procedures.
EQUIPMENT FAILURE: Do not use damaged equipment. If abnormal noise, vibration, or excess smoking occurs, have the problem corrected 
before further use.
Many maintenance procedures, including any not detailed in this manual, will need to be performed by a qualied technician for safety. If you have 
any doubts about your ability to safely service the equipment or engine, have a qualied technician service the equipment instead.
Power
Cleaning, Maintenance, and Lubrication Schedule
Note: This maintenance schedule is intended solely as a general guide. If performance decreases or if equipment operates unusually, check systems 
immediately. The maintenance needs of each piece of equipment will differ depending on factors such as duty cycle, temperature, air quality, fuel 
quality, and other factors.
Note: The following procedures are in addition to the regular checks and maintenance explained as part of the regular operation of the engine and 
equipment.
Procedure
1. Brush off outside of engine
2. Check engine oil level
3. Check air lter
Change engine oil
Clean/replace air cleaner
1. Check and clean spark plug
2. Check and clean spark arrestor
Replace fuel line if necessary
Before 
Each Use
Monthly or 
every 8 hr. 
of use
Every 3 mo. 
or 50 hr. 
of use
Every 6 mo. 
or 100 hr. 
of use
Yearly or 
every 300 hr. 
of use
Every 
2 Years
1. Check/adjust idle speed (Have qualied 
technician service)
2. Check/adjust valve clearance (Have 
qualied technician service)
3. Clean fuel tank, strainer and carburetor
4. Clean carbon build-up from combustion 
chamber