28
Air lter
element
Check X
Clean X
Replace X
Deposit Cup
(if equipped)
Clean X
Spark Plug
Check and
Adjust
X
Replace Every year or 250hrs of operation
Spark arrester Clean X
Idling
(if equipped)*
Check-adjust X
Valve
clearance*
Check-adjust X
Fuel tank &
fuel lter*
Clean X
Fuel line Check Every 2 years (change if necessary)
Cylinder
head, piston
Clean up
carbon*
Every 250hrs
* These items should be maintained and repaired by an authorized dealer unless
the owner has appropriate tools and is procient with mechanical maintenance.
MAINTENANCE
NOTICE
• If the gasoline engine frequently works under high temperature or
heavy load, change the oil every 25 hours.
• If the engine frequently work under dusty or other severe
circumstances, clean the air lter element every 10 hours; If
necessary, change the air lter element every 25 hours.
• The maintenance period and the exact time (hour), the one which
comes rst should govern.
• If you have missed the scheduled time to maintain your engine, do
it as soon as possible.
WARNING
• Stop the engine before servicing. Put the engine on a level surface
and remove the spark plug cap to prevent the engine from starting.
• Do not operate the engine in a poorly ventilated room or other
enclosed area. Be sure to keep good ventilation in working area.
The exhaust from the engine may contain poisonous CO, inhalation
can cause shock, unconsciousness and even death.
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