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13
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Hints on the Use of Fuel and Engine Oil
Fuel
Please use lead-free gasoline. If slight explosion sound comes from the
engine, the possible cause is to use general fuel as a substitute, thus replace
the fuel.
Note:
Using lead-free gasoline can prolong the lifetime of the spark plug.
Engine Oil
Use of high quality 4-stroke engine oil would extend the lifetime of the
engine. Grade SE or SD engine oil in API method is recommended, whose
viscosity is SAE10W-40. If this oil is not available, please purchase
appropriate substitutes according to the data listed below.
℃
-30 -20 -10 0 10 20 30 40
-22 -4 -14 32 50 68 86 104
°
F
°
TEM P
MULTIGRA DE
Running-in Operation
That correct running-in operation is important to prolong the service life
and making the best of a new motorcycle. This chapter provides the correct
methods of running-in operation.
Maximum Speed
The maximum speed limits for a new motorcycle during the running-in
period are shown as below.
First 800 km
Less than 5,000 rpm
To 1,600 km
Less than 7,500 rpm
Over 1,600 km
Less than 10,000 rpm
Vary the Engine Speed
The engine speed should be changed often, instead of being kept steady,
so that each component of the engine acquires a “loaded” pressure. When the
pressure is “unloaded”, the components will be cooled down. Such process
contributes to the engagement of the components. In order to ensure a fine
fitness, it’s important to give a load to each of the component in the trial
riding. But mind that the engine must not be overloaded.