Remounting; Oil Pump - HYOSUNG WOW90 Service Manual

REMOUNTING

Remount the fuel tank and fuel cock in the reverse order
of removal.
WARNING
� Gaskets ① and ② must be replaced with new
ones to prevent fuel leakage.
� Tighten the fuel cock bolts evenly.

OIL PUMP

◉ ◉ AIR BLEEDING
Whenever evidence is noted of some air having leaked
into the oil pipe from the oil tank in a machine brought in
for servicing, or if the oil pump has to be removed for
servicing, be sure to carry out an air bleeding operating
with the oil pump in place before returning the vehicle to
the user.
To bleed air, hold the vehicle in standstill condition.
Loosen the air bleeding screw ① to let out air and after
making sure that the trapped air has all been bled, tight-
en the air bleeding screw completely.
◉ ◉ CHECKING OIL PUMP
Use the special tool, to check the pump for capacity by
measuring the amount of oil the pump draws during the
specified interval.
● Remove the frame cover.
● Have the HYPOL Oil gauge filled with HYOSUNG
HYPOL OIL HS and connect it to the suction side of
the pump.
● Run the engine at 3,000 rpm.
● Holding engine speed at the same 3,000 rpm, let the
pump draw for 5 minutes. For this operation, the
reading taken on the device should be 2.6 ~ 2.8 ㎖ ..
HYPOL Oil gauge : 09900 - 21602
Engine oil
discharge amount
CAUTION
During this inspection, strictly follow the follow-
ing points.
� � Do not touch the rear wheel while running the
engine.
2.6 ~ 2.8 ㎖ .
(at 3,000 rpm for 5 minutes)
FUEL SYSTEM 4-8