Lower Unit; Checking The Cooling Water Discharge; Checking The Gear Oil Level; Changing And Checking The Gear Oil - Yamaha 25BMH Service Manual

CHK
COOLING SYSTEM/LOWER UNIT
ADJ
COOLING SYSTEM
CHECKING THE COOLING WATER
DISCHARGE
Check:
• Pilot water
Does not flow → Clean and check the
cooling water passage.
Checking steps
(1) Place the lower unit in water.
(2) Start the engine.
(3) Check that water flows from the pilot
water outlet.

LOWER UNIT

CHECKING THE GEAR OIL LEVEL

Check:
• Gear oil level
Level is low → Add gear oil to the
proper level.
CHANGING AND CHECKING THE
GEAR OIL
1. Check:
• Gear oil
Milky oil → Replace the oil seal.
Slug oil → Check the oil gears, bear-
ings, and clutch dog.
Checking steps
(1) Tilt up the outboard slightly.
(2) Place a container under the gear oil
drain screw
(3) Remove the gear oil drain screw and
gear oil level check screw
3-20
1
.
2
.
E