Maintenance
ventilated place, not in direct sunlight.
water pump will be damaged or the en-
gine will be damaged from overheating.
Before starting the engine, be sure to
supply water to the cooling water passag-
es.
EMU28301
Procedure
EMU28372
Flushing in a test tank
1.
Wash the outboard motor body using
fresh water. For further information, see
page 46.
Fill the fuel tank with fresh fuel and add
one ounce of “Yamaha Fuel Conditioner
and Stabilizer” (Part No. LUB-FUELC-
ECM00290
CAUTION:
If the fresh water level is below the level
of the anti-cavitation plate, or if the water
supply is insufficient, engine seizure may
occur.
2.
12-00)
to each gallon of fuel.
NOTE:
6.
Cooling system flushing is essential to
prevent the cooling system from clog-
ging up with salt, sand, or dirt. In addi-
tion, fogging of the engine is mandatory
to prevent excessive engine damage
due to rust. Perform the flushing and
fogging at the same time.
The use of “Yamaha Fuel Conditioner and
Stabilizer” eliminates the need to drain the
fuel system. Consult your Yamaha dealer or
other qualified mechanic if the fuel system is
to be drained instead.
3.
4.
Remove the engine top cowling and si-
lencer cover.
Install the outboard motor on the test
tank.
EWM00090
WARNING
q
q
Do not touch or remove electrical parts
when starting or during operation.
Keep hands, hair, and clothes away
from the flywheel and other rotating
parts while the engine is running.
1
2
7.
8.
Run the engine at a fast idle for 10–15
minutes in neutral position.
Just prior to turning off the engine, quick-
ly spray “Yamaha Stor-Rite Engine
Fogging Oil” (Part No. LUB-STRRT-12-
00) alternately into each carburetor or
the fogging hole of the silencer cover, if
equipped. When properly done, the en-
gine will smoke excessively and almost
stall.
ZMU02051
1.
Water surface
2.
Lowest water level
5.
Fill the tank with fresh water to above the
level of the anti-cavitation plate.
9.
Remove the outboard motor from the
test tank.
ECM00300
CAUTION:
10. Drain the cooling water completely out
of the motor. Clean the body thoroughly.
Do not run the engine without supplying
it with cooling water. Either the engine 11. Install the silencer cover/cap and top
44
| 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)