Maintenance
50
dling hot parts or fluids.
●
Always completely reassemble the mo-
tor before operation.
EMU28511
Replacement parts
If replacement parts are necessary, use only
genuine Yamaha parts or parts of equivalent
design and quality. Any part of inferior quality
may malfunction, and the resulting loss of
control could endanger the operator and
passengers. Yamaha genuine parts and ac-
cessories are available from your Yamaha
dealer.
EMU34151
Severe operating conditions
Severe operating conditions involve one or
more of the following types of operation on a
regular basis:
●
Operating continuously at or near maxi-
mum engine speed (rpm) for many hours
●
Operating continuously at a low engine
speed (rpm) for many hours
●
Operating without sufficient time for engine
to warm up and cool down
●
Frequent quick acceleration and decelera-
tion
●
Frequent shifting
●
Frequently starting and stopping the en-
gine(s)
●
Operation that fluctuates often between
light and heavy cargo loads
Outboard motors operating under any of
these above conditions require more fre-
quent maintenance. Yamaha recommends
that you do this service twice as often as
specified in the maintenance chart. For ex-
ample, if a particular service should be done
at 50 hours, do it instead at 25 hours. This
will help prevent more rapid deterioration of
engine components.
69R-9-2A-1E0.book 50 ページ ２０１０年２月３日 水曜日 午後５時１８分
