Breaking In Engine; Procedure For 4-Stroke Models; Preoperation Checks; Fuel - Yamaha F6 Owner's Manual

Operation
3. Secure the clamp bracket to the transom
using the bolts provided with the out-
board (if packed). For details, consult
your Yamaha dealer.
EWM00650
WARNING
Avoid using bolts, nuts or washers other
than those contained in the engine pack-
aging. If used, they must be of at least the
same quality of material and strength and
must be tightened securely. After tighten-
ing, test run the engine and check their
tightness.
1
1. Bolts
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.
ECM00800
CAUTION:
Failure to follow the break-in procedure
could result in reduced engine life or even
severe engine damage.
EMU27081

Procedure for 4-stroke models

Run the engine under load (in gear with a pro-
peller installed) for 10 hours as follows.
26
1. First hour:
Run the engine at 2000 r/min or at ap-
proximately half throttle.
2. Second hour:
Run the engine at 3000 r/min or at ap-
proximately three-quarter throttle.
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.
EMU27102
EWM00080
WARNING
If any item in the preoperation check is not
working properly, have it inspected and
repaired before operating the outboard
motor. Otherwise an accident could occur.
ECM00120
CAUTION:
ZMU02014
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
G
your trip.
Make sure there are no fuel leaks or gaso-
G
line fumes.
Check fuel line connections to be sure they
G
are tight (if equipped Yamaha fuel tank or
boat tank).
Be sure the fuel tank is positioned on a se-
G
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).

Preoperation checks