5 - 3
5
OPERATION AND IMPORTANT RIDING POINTS
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Even with the transmission in the
neutral position, do not coast for
long periods of time with the
engine off, and do not tow the
motorcycle for long distances.
The transmission is properly
lubricated only when the engine
is running. Inadequate
lubrication may damage the
transmission.
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Always use the clutch while
changing gears to avoid
damaging the engine,
transmission, and drive train,
which are not designed to
withstand the shock of forced
shifting.
Engine break-in
There is never a more important period
in the life of your engine than the first
20 hours of riding. For this reason, you
should read the following material
carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
20 hours of operation. The various parts
in the engine wear and polish
themselves to the correct operating
clearances. During this period, prolonged
full-throttle operation or any condition that
might result in engine overheating must
be avoided. However, momentary full-
throttle operation under load (i.e., two to
three seconds maximum) does not harm
the engine. Each full-throttle acceleration
should be followed with a substantial rest
period for the engine. To allow the engine
to cool down from the temporary buildup
of heat, cruise at a lower engine speed.
0-10 hours
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Avoid prolonged operation above 1/
2 throttle.
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After every hour of operation, stop
the engine, and then let it cool for
five to ten minutes.
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Vary the engine speed from time to
time. Do not operate the engine at
one set throttle position.
10-20 hours
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Avoid prolonged operation above 3/
4 throttle.
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Rev the engine freely through the
gears, but do not use full throttle at
any time.
After break-in
Avoid prolonged full-throttle operation.
Vary the engine speed occasionally.
If any engine trouble should occur
during the engine break-in period,
immediately have a Yamaha dealer
check the vehicle.
