Set Up Instructions For Oil Injection System; Carburetor/Oil Pump Synchronization (Variable Ratio Oil Pump); Filling Oil Injection System With Oil - Mercury 45 Jet 50-55 Service Manual

Set Up Instructions for Oil
Injection System
CAUTION
!
During break-in, engine must be run on a 25:1 gasoli-
ne/oil ratio (50:1 mixed oil/fuel ratio in fuel tank plus
50:1 ratio from oil pump) for the first 15 gallons of fuel.
Refer to engine break-in procedure in the Operation
and Maintenance Manual.
CAUTION
!
If using an electric fuel pump, fuel pressure must not
exceed 4 psi (27.4 kPa). If necessary, install a pressure
regulator between electrical fuel pump and engine. Set
at 4 psi maximum.
Carburetor/Oil Pump Synchronization
(Variable Ratio Oil Pump)
While holding throttle arm at idle position, adjust length of
link rod so that stamped mark of oil pump body aligns with
stamped mark of oil pump lever, and lever is in closed posi-
tion.
a - Mark on Body
b - Mark on Lever
c - Link Rod
3D-8 - FUEL SYSTEMS
a
c
b
52047

Filling Oil Injection System with Oil

Quicksilver 2-Cycle Outboard Oil is recommended for this
oil injection system. In an emergency, whin Quicksilver oil
is not available, substitute a high quality 2-cycle outboard
oil that meets BIA ratings TC-W and TC-WII, shown on oil
container. BIA ratings, TC-W and TC-WII are the Boating
Industry Association's designation for approved 2-Cycle
water-cooled outboard oils.
90-817643R1 DECEMBER 1996