90-817643R1 DECEMBER 1996 FUEL SYSTEMS - 3D-9
Bleeding Air From Oil Injection
System
!
CAUTION
If air exists in either oil pump hose (inlet or outlet), the
air MUST BE bled from hose(s) or engine damage may
occur.
BLEEDING AIR FROM OIL PUMP INLET HOSE
With engine not running, place a shop towel below oil
pump. Loosen bleed screw three to four turns and allow air
bubbles to exit inlet hose. Torque bleed screw to 25 lb. in.
(3.0 N·m). This procedure also allows oil pump to fill with
oil.
BLEEDING AIR FROM OIL PUMP OUTLET HOSE
1. Purge air from outlet hose by running engine (on 50:1
gasoline/oil mixture in fuel tank) at idle speed until no
air bubbles are present in outlet hose.
51204
Fixed Ratio Oil Pump
52047
b
c
a
Variable Ratio Oil Pump
a - Bleed Screw
b - Inlet Hose
c - Outlet Hose
Outboard Operation
1. Check oil level in oil tank.
2. A 50:1 gasoline/oil mixture must be used during break-
in or after extended storage.
3. Check warning horn operation.
Turning the key from the “off” to “on” position (engine not
running) will momentarily trigger the warning horn. This
alerts you the warning system is functional. If the warning
horn does not sound or stays on when the key is in the “on”
position, refer to oil injection system troubleshooting chart
following to correct the problem.
The oil injection warning sound is an intermittent “beep”,
“beep”, “beep”, etc. The overheat warning sound is a con-
tinuous “beep” .
Check Operation of the Oil Injection
System (Engine Running)
1. Operate engine following the break-in procedure out-
lined in the Operation and Maintenance Manual.
If warning horn should sound and intermittent “beep”,
“beep”, “beep” during operation, a problem may be occur-
ring in the oil injection system. Refer to troubleshooting fol-
lowing.
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