Engine Break-In; Parking - Yamaha YW50A Owner's Manual

OPERATION AND IMPORTANT RIDING POINTS

Engine break-in

There is never a more important pe-
riod in the life of your engine than the
1
period between 0 and 1000 km (600
mi). For this reason, you should read
the following material carefully.
2
Since the engine is brand new, do not
put an excessive load on it for the fi rst
3
1000 km (600 mi). The various parts
in the engine wear and polish them-
4 selves to the correct operating clear-
ances. During this period, prolonged
full-throttle operation or any condition
5
that might result in engine overheating
must be avoided.
6
0 ~ 150 km (0 ~ 90 mi)
7
Avoid prolonged operation above 1/3
throttle. Vary the speed of the scooter
8 from time to time. Do not operate it at
one set throttle position.
9
150 ~ 500 km (90 ~ 300 mi)
Avoid prolonged operation above 1/2
throttle.
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500 ~ 1000 km (300 ~ 600 mi)
Avoid cruising speeds in excess of 3/4
throttle.
1000 km (600 mi) and beyond
Avoid prolonged full throttle operation.
Vary speeds occasionally. NOTICE:
After 1000 km (600 mi) of operation,
the fi nal transmission oil must be
changed.
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NOTICE
If any engine trouble should occur
during the engine break-in period,
immediately have a Yamaha dealer
check the vehicle.
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Parking

When parking, stop the engine, and
then remove the key from the main
switch.
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5-4
WARNING
Since the engine and exhaust
system can become very hot,
park in a place where pedestri-
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