7-1
7
EBU31873
OPERATION
EBU31880
Read the Owner’s Manual carefully to be-
come familiar with all controls. If there is a
control or function you do not understand,
ask your Yamaha dealer.
WARNING
EWB03290
Failure to familiarize yourself with the con-
trols can lead to loss of control, which
could cause an accident or injury.
EBU35721
Engine break-in
There is never a more important period in the
life of your vehicle than the period between 0
and 15 hours.
For this reason, we ask that you read the fol-
lowing material carefully. Because the engine
is brand new, you must not put an excessive
load on it for the first several hours of opera-
tion. During the first 15 hours, the various
parts in the engine wear and polish them-
selves to achieve the correct operating clear-
ances.
During this period, prolonged full-throttle op-
eration or any condition that might result in
excessive engine heating must be avoided.
However, momentary (2–3 seconds maxi-
mum) full-throttle operation under load does
not harm the engine.
Each full-throttle acceleration sequence
should be followed with a substantial rest pe-
riod for the engine, by cruising at lower r/min
so the engine can rid itself of the temporary
build-up of heat. If any abnormality is noticed
during this period, consult a Yamaha dealer.
0–8 hours:
Avoid prolonged operation above 5300 r/min.
Allow a cooling-off period of 5 to 10 minutes
after every hour of operation. Vary the speed
of the vehicle from time to time. Do not oper-
ate it at one set throttle position.
UBDW11E0.book Page 1 Wednesday, June 7, 2023 11:11 AM
