Lubrication (Oil Injection Models) - Yamaha 90 Owner's Manual

cover/cap. Remove the propeller.
4. Install the flushing attachment over the
cooling water inlet.
ECM00300
CAUTION:
Do not run the engine without supplying
it with cooling water. Either the engine
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.
ECM00310
CAUTION:
Avoid running the outboard motor at high
speed while on the flushing attachment,
otherwise overheating could occur.
1. Flushing attachment
5. Cooling system flushing is essential to
prevent the cooling system from clog-
ging up with salt, sand, or dirt. In addi-
tion, fogging/lubricating of the engine is
mandatory to prevent excessive engine
damage due to rust. Perform the flush-
ing and fogging at the same time.
EWM00090
WARNING
Do not touch or remove electrical parts
G
when starting or during operation.
Keep hands, hair, and clothes away
G
from the flywheel and other rotating
parts while the engine is running.
6. Run the engine at a fast idle for 10–15
minutes in neutral position while supply-
ing fresh water.
7. Just prior to turning off the engine, quick-
ly spray "Yamaha Stor-Rite Engine Fog-
ging Oil" (Part No. LUB-STRRT-12-00)
alternately into each carburetor/each in-
take manifold. When properly done, the
engine will smoke excessively and al-
most stall.
8. Remove the flushing attachment and
wipe off any excess water.
9. Install the silencer cover/cap and top
cowling. Install the propeller.
NOTE:
A flushing attachment is available from your
Yamaha dealer.
EMU28410

Lubrication (oil injection models)

1. Grease the spark plug threads and in-
stall the spark plug(s) and torque to
proper specification. For information on
spark plug installation, see page 50.
2. Fill the oil tanks. This prevents the for-
mation of condensation. For models with
a remote oil tank, it may be necessary to
manually override the control unit to
completely fill the engine oil tank.
3. Change the gear oil. For instructions,
see page 56. Inspect the oil for the pres-
ence of water which indicates a leaky
seal. Seal replacement should be per-
formed by an authorized Yamaha dealer
prior to use.
4. Grease all grease fittings. For further de-
tails, see page 49.
Maintenance
44