Operation
board (if packed). For details, consult
EMU27060
Gasoline and engine oil mixing chart
(50:1)
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.
2.
: Gasoline
: Engine oil
ECM00150
CAUTION:
Be sure to mix gasoline and oil complete-
ly, otherwise the engine may be dam-
aged.
1
1
EMU30310
ZMU03185
Procedure for oil injection models
Run the engine under load (in gear with a
propeller installed) as follows.
1.
Bolts
1.
First 10 minutes:
EMU27020
Breaking in engine
Run the engine at the lowest possible
speed. A fast idle in neutral is best.
Next 50 minutes:
Do not exceed half throttle (approxi-
mately 3000 r/min). Vary engine speed
occasionally. If you have an easy-plan-
ing boat, accelerate at full throttle onto
plane, then immediately reduce the
throttle to 3000 r/min or less.
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
2.
life.
ECM00140
CAUTION:
q
q
Failure to follow the break-in procedure
could result in reduced engine life or
even severe engine damage.
Premix fuel must be used during break-
in in addition to oil in the oil injection
system.
3.
Second hour:
Accelerate at full throttle onto plane,
then reduce engine speed to three-quar-
ter throttle (approximately 4000 r/min).
Vary engine speed occasionally. Run at
full throttle for one minute, then allow
about 10 minutes of operation at three-
quarter throttle or less to let the engine
23
| Categories | Yamaha Outboard Manuals |
|---|---|
| Document Type | Boat Motor Manual Free Download. Marine Operator's Boating Guide. |
| Tags | Yamaha 40D, Yamaha 50D |
| Model Year | 2005 |
| Download File |
|
| Language | English |
| Product Brand | Yamaha Motor. Yamaha Motor Corporation, USA - Support Customer Relations for US: 1-800-962-7926
Yamaha Boats: 1-800-962-7926 Yamaha Outboard Customer Relations: 1-866-894-1626 , Yamaha Outboard |
| Document File Type | |
| Publisher | yamaha-motor.com |
| Wikipedia's Page | Yamaha Motor Company |
| Copyright | Attribution Non-commercial |
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