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Chapter 4 Instructions on fuel and engine oil
1. Fuel
! Warning
Gasoline is inflammable and explosive. When handling gasoline,
attention should be paid to prevent burnt or accident.
●
In places where gasoline is stored or handled, shutdown the engine,
do not smoke, and keep away from naked flame or spark.
●
Refueling shall be made in a well ventilated place. After refueling,
immediately clean off any gasoline outside the fuel tank.
Please #93 or #95 (GB17930-1999) unleaded gasoline. This may
prolong the service life of spark plug.
Note!
If the engine produces ping noise, it may be caused by using of
improper fuel. Replace with correct fuel.
Ethanol gasoline
If ethanol gasoline is used, please use #90 or higher conforming to
GB18351-2004. Do not use methanol gasoline, even though it may contain
cosolvent and anti-corrosion agent.
Note!
●
If ethanol gasoline is exposed to water excessively, ethanol may be
separated, resulting in decrease of gasoline octane number. Therefore, the
storage time shall not be too long.
●
Before using ethanol gasoline for the first time, make a through
cleaning of the fuel supply system and fuel tank.
●
Always buy a proper amount of ethanol gasoline. Once there is a poor
fuel tank sealing or a long storage time, moisture content may increase,
causing low octane number and resulting in difficult ignition or weak
power.
2. Lubricant
(Please refer to Regular Maintenance Table)
Use high quality 4-stroke engine oil to prolong engine life. Engine oil
shall be SE or SD product in API classification. Engine oil of proper
viscosity shall be used according to local air temperature. There are three
viscosity levels suitable for the engine, namely, SAE15W-40, SAE10W-30
