Suzuki UG110 2021, Service Manual, Page: 95 / 198

FUEL AND LUBRICATION SYSTEM 4-19
OIL PUMP
AIR BLEEDING
Whenever air leaks into the oil pipe from the oil tank or the oil
pump is removed, the oil pump must be bled of any air.
• Remove the oil pump cover
1
.
• Hold the motorcycle in a stationary position.
• Loosen the screw
2
to bleed the air.
• After all of the air has been bled, tighten the screw.
DISCHARGE RATE CHECK
Use the CCI oil gauge to check the oil pump discharge rate. Mea-
sure the amount of oil that the oil pump draws during the proce-
dure.
• Remove the trunk. (
7
5-6)
• Disconnect the oil hose
1
from the oil tank.
• Connect the suitable plug to the outlet of the oil tank.
• Fill the CCI oil gauge with SUZUKI CCI SUPER OIL. Connect
the oil gauge to the oil hose
1
.
• Hold the oil pump lever
2
in full open position.
• Run the engine at 2 000 r/min.
• Keep the engine speed at 2 000 r/min and allow the pump to
draw for 3 minutes. The measurement on the oil gauge should
be within specification.
2
09900-21602: CCI oil gauge
4
Oil discharge amount:
1.1 – 1.4 ml at 2 000 r/min for 3 minutes.
5
Be sure to place the motorcycle on the center stand.
NOTE:
Adjust the engine idle speed after checking the oil pump.
(
7
2-7 and -8)