Operation and important riding points
6-1
6
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Read the Owner’s Manual carefully to
become familiar with all controls. If
there is a control or function you do not
understand, ask your Yamaha dealer.
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Failure to familiarize yourself with
the controls can lead to loss of con-
trol, which could cause an accident
or injury.
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Engine break-in
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Failure to properly maintain the vehi-
cle or performing maintenance ac-
tivities incorrectly may increase
your risk of injury or death during
service or while using the vehicle. If
you are not familiar with vehicle ser-
vice, have a Yamaha dealer perform
service.
Before starting the engine for the first
time, the air filter must be lubricated.
(See page 7-10.)
Engine break-in procedure
1. Fill the fuel tank with a break-in oil-
fuel mixture as follows.
2. Start and warm up the engine.
Check the operation of the con-
trols and the engine stop switch.
(See page 4-1.)
3. Operate the motorcycle in the low-
er gears at moderate throttle
openings for 5 to 8 minutes. Stop
the engine and check the spark
plug condition (see page 7-6); it
will show a rich condition during
break-in.
4. Allow the engine to cool. Restart
the engine and operate the motor-
cycle as in the step above for 5 mi-
nutes. Then, very briefly shift to
Recommended 2-stroke engine oil:
YAMALUBE 2R
Mixing ratio (gasoline to oil):
15:1
UBR811E0.book Page 1 Thursday, March 21, 2019 10:27 AM
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