Mercury 300 XS OptiMax User Manual

OPERATION
60 eng
PRIMING THE OIL INJECTION PUMP
Before starting the engine for the first time, prime the oil injection pump.
Priming will remove any air that may be in the pump, oil supply hose, or internal
passages.
a - Oil injection pump
b - Oil supply hose
IMPORTANT: Fill the engine fuel system with fuel before priming the oil
injection pump. Otherwise, the fuel pump will run without fuel during the priming
process and may be damaged.
Prime the oil injection pump as follows:
1. Fill the engine fuel tank with fuel.
2. Position the fuel primer bulb so the arrow on the side of the bulb is
pointing up. Squeeze the fuel hose primer bulb until it feels firm.
27348
a
b
7747

Mercury 300 XS OptiMax Specifications

General

Brand	Mercury
Model	300 XS OptiMax
Category	Outboard Motor
Language	English