General information
dry rags.
EMU25650
Engine oil
q
q
Do not overfill the fuel tank.
Tighten the filler cap securely after re-
fueling.
If you should swallow some gasoline,
inhale a lot of gasoline vapor, or get
gasoline in your eyes, get immediate
medical attention.
Recommended engine oil:
YAMALUBE 2-stroke outboard motor
oil
q
If the recommended engine oil is not avail-
able, another 2-stroke engine oil with an
If any gasoline spills onto your skin, im- NMMA-certified TC-W3 rating may be used.
q
q
mediately wash with soap and water.
EMU25690
Battery requirement
Change clothing if gasoline spills on it.
Touch the fuel nozzle to the filler open-
ing or funnel to help prevent electro-
static sparks.
ECM01060
CAUTION:
Do not use a battery that does not meet
the specified capacity. If a battery which
does not meet specifications is used, the
electric system could perform poorly or
be overloaded, causing electric system
damage.
ECM00010
CAUTION:
Use only new clean gasoline which has
been stored in clean containers and is not
contaminated with water or foreign mat-
ter.
For electric start models, choose a battery
which meets the following specifications.
EMU25570
Gasoline
If knocking or pinging occurs, use a different
brand of gasoline or premium unleaded fuel.
EMU25711
Battery specifications
Minimum cold cranking amps (CCA/
SAE):
245.0
Minimum marine cranking amps (MCA/
ABYC):
323.0
Recommended gasoline:
A
Regular unleaded gasoline with a min-
imum octane rating of 86 (Pump Oc-
tane Number) = (R+M)/2
A
Gasohol
Minimum reserve capacity (RC/SAE):
52 minutes
There are two types of gasohol: gasohol con-
taining ethanol and that containing metha-
nol. Gasohol containing ethanol can be used
if ethanol content does not exceed 10% and
the fuel meets minimum octane ratings.
Yamaha does not recommended gasohol
containing methanol because it can cause
fuel system damage or engine performance
problems.
EMU25742
Propeller selection
The performance of your outboard motor will
be critically affected by your choice of propel-
ler, as an incorrect choice could adversely
affect performance and could also seriously
damage the motor. Engine speed depends
on the propeller size and boat load. If engine
8
| Categories | Yamaha Outboard Manuals |
|---|---|
| Document Type | Boat Motor Manual Free Download. Marine Operator's Boating Guide. |
| Tags | Yamaha 40, Yamaha 50 |
| Model Year | 2006 |
| 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 |
(0 votes, average: 0 out of 5)