Oil Hose Check Valve Installation On 1998 Model 135/150 Dfi Outboards Sn 0G886266 And Below - Mercury Optimax 115 Service Manual

Oil Hose Check Valve Installation on 1998 Model 135/150 DFI Outboards
SN 0G886266 and Below
To prevent possible momentary oil starvation in the oil pump delivery hoses, it is recom-
mended that check valve kit 21-858945A2 be installed as follows:
NOTE: Refer to Service Bulletin 98-23.
1. Remove flywheel cover. Pull out vent hose.
a -
2. Remove 4 bolts securing bottom cowl halves and remove bottom cowling.
a
55932
a -
3. Remove throttle cable from throttle arm.
a -
90-855347R1 JANUARY 1999
a
Vent Hose
Bolt
a
Throttle Cable
a
52352
OIL INJECTION
a
55970
Page 3C-3