Oil Injection System; Checking The Lower Unit For Air Leakage - Yamaha Z300A Supplementary Service Manual

Oil injection system

Adjusting the oil pump link rod
1. Loosen the locknut 1 and then discon-
nect the oil pump link rod 2.
2. Fully close the throttle valves.
3. Adjust the oil pump link rod so that there
is a 0.5 mm (0.02 in) gap a between the
oil pump lever 3 (in the fully closed posi-
tion) and the stopper 4.
4
4. Connect the oil pump link rod.
5. Check that the oil pump lever 3 contacts
the stopper 4 when the throttle valve is
in the fully open position.
3
6D03F1X
Maintenance interval chart / Oil injection system / Lower unit
2
1
a
3
3
S60V3290
4
S60V3300
Lower unit
3
Checking the lower unit for air
leakage
1. Remove the check screw 1, and then
install the special service tool.
Leakage tester: 90890-06840
2. Apply the specified pressure to check
that the pressure is maintained in the
lower unit for at least 10 seconds.
CAUTION:
Do not over pressurize the lower unit, oth-
erwise the oil seals may be damaged.
NOTE:
Cover the check hole with a rag when remov-
ing the tester from the lower unit.
Lower unit holding pressure:
70 kPa (0.7 kgf/cm
3. If pressure drops below specification,
check the drive shaft and propeller shaft
oil seals for damage.
3
2
, 10 psi)
32