Mercury 200 User Manual page 116

PRIMING 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
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.
1. Fill the fuel system.
a. Connect the fuel hose.
b. Fill the fuel system by squeezing the primer bulb.
c. Position the fuel line primer bulb so the arrow on the side
of the bulb is pointing up. Squeeze the fuel line primer bulb
until it feels firm.
OUTBOARD INSTALLATION
b
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b - Oil supply hose
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a