LOWER UNIT
3-21
E
CHK
ADJ
2. Fill:
•
Gear oil
(with the specified amount of the
recommended gear oil)
Filling steps
(1) Place the outboard in an upright posi-
tion.
(2) Insert the gear oil tube into the drain
hole and slowly fill the gear oil until oil
flows out of the check hole and no air
bubbles are visible.
(3) Install the gear oil level check screw
and then quickly install the gear oil
drain screw.
CHECKING THE LOWER UNIT (FOR
AIR LEAKS)
Check:
•
Lower unit holding pressure
Pressure drops
→
Check the seal and
components.
Checking steps
CAUTION:
Do not ove rpressurize the lower unit.
Excessive pressure may damage the oil
seals.
(1) Remove the gear oil level check screw.
(2) Install the pressure tester into the check
hole.
(3) Apply the specified pressure.
(4) The lower unit should hold the speci-
fied pressure for 10 seconds.
Recommended gear oil
Hypoid gear oil, SAE #90 (API GL-4)
Oil capacity
320 cm
3
(10.8 US oz, 11.3 lmp oz)
Lower unit holding pressure
100 kPa (1.0 kg/cm
2
, 14.5 psi) for
10 seconds
Leakage tester
90890-06762
Summary of Contents for 25BMH
Page 48: ...FEATURES AND BENEFITS GEN INFO 1 12 E COOLING SYSTEM Fig 7 ...
Page 49: ...1 12 CARACTERISTIQUES ET AVANTAGES GEN INFO F ...
Page 50: ...1 12 MERKMALE UND VORTEILE GEN INFO D ...
Page 51: ...1 12 CARACTERÍSTICAS Y VENTAJAS GEN INFO ES ...
Page 92: ...MAINTENANCE SPECIFICATIONS SPEC 2 8 E DIMENSIONS ...
Page 156: ...GENERAL CHK ADJ 3 26 E NOTE Grease the inner cable and the lock nut 2 Apply Yamaha grease D ...
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Page 446: ...Printed on recycled paper Printed in Japan Oct 2000 1 9 1 25BMH 30HMH YAMAHA MOTOR CO LTD ...