Operation
34
EMU30173
Breaking in engine
Your new engine requires a period of break-in
to allow mating surfaces of moving parts to
wear in evenly. Correct break-in will help en-
sure proper performance and longer engine
life.
CAUTION:
ECM00800
Failure to follow the break-in procedure
could result in reduced engine life or even
severe engine damage.
EMU27083
Procedure for 4-stroke models
Your new engine requires a period of ten-
hours break-in to allow mating surfaces of
moving parts to wear in evenly. Correct break-
in will help ensure proper performance and
longer engine life.
NOTE:
Failure to follow the break-in procedure could
result in reduced engine life or even severe
engine damage. Run the engine in the water,
under load (in gear with a propeller installed)
as follows. For ten hours for breaking in en-
gine avoid extended idling, rough water and
crowded areas.
1. For the first hour of operation:
Run the engine at varying speeds up to
2000 r/min or approximately half throttle.
2. For the second hour of operation:
Increase engine speed as much as nec-
essary to put the boat on plane (but avoid
full-throttle operation), then back off on
the throttle while keeping the boat at a
planing speed.
3. Remaining eight hours:
Run the engine at any speed. However,
avoid operating at full throttle for more
than 5 minutes at a time.
4. After the first 10 hours:
Operate the engine normally.
EMU27104
Pre-operation checks
WARNING
EWM00081
If any item in the pre-operation check is
not working properly, have it inspected
and repaired before operating the out-
board motor. Otherwise an accident could
occur.
CAUTION:
ECM00120
Do not start the engine out of water. Over-
heating and serious engine damage can
occur.
EMU27111
Fuel
● Check to be sure you have plenty of fuel for
your trip.
●
Make sure there are no fuel leaks or gaso-
line fumes.
●
Check fuel line connections to be sure they
are tight (if equipped Yamaha fuel tank or
boat tank).
●
Be sure the fuel tank is positioned on a se-
cure, flat surface, and that the fuel line is not
twisted or flattened, or likely to contact
sharp objects (if equipped Yamaha fuel
tank or boat tank).
1. Bolts
1
ZMU03806
U6AU11E0.book Page 34 Friday, September 7, 2007 10:51 AM
©2019 Yamaha Motor Corporation, U.S.A.
To Next Page
Loading...
