Yamaha F6AMH Service Manual

LOWER UNIT
CHECKING THE LOWER UNIT (FOR AIR
LEAKS)
Check:
 Lower unit holding pressure
Pressure drops
 Check the seals
and components.
Checking steps:
CAUTION:
Do not overpressurize the lower unit.
Excessive pressure may damage the oil
seals.
(1)Remove the gear oil level check screw.
(2)Install the leakage tester 1 or mity vac
into the check hole.
(3)Apply the specified pressure.
(4)The lower unit should hold the
specified pressure for 10 seconds.
(5)Remove the pressure tester 1, then
install the gear oil level check screw.
Lower unit holding pressure:
100 kPa (1.0 kgf/cm
2
, 14.2 psi) for
10 seconds
Leakage tester:
NA/90890-06762
Mity vac:
YB-35956-A/90890-06756
Gear oil level check screw:
7 N
 m (0.7 kgf  m, 5.1 ft  lb)
3-21

Yamaha F6AMH Specifications

General

Brand	Yamaha
Model	F6AMH
Category	Outboard Motor
Language	English