Starting The Engine - Mercury 300 XS OptiMax Manual

3. Turn the ignition key switch to the "ON" position.
4. Within the first 10 seconds after the key switch has been turned on, move
the remote control handle from neutral into forward gear 3 to 5 times. This
will automatically start the priming process.
NOTE: It may take a few minutes for the pump to complete the priming
process.
PURGING AIR FROM THE ENGINE MOUNTED OIL RESERVOIR TANK
1. Loosen the vent cap on the engine mounted oil reservoir tank.
2. Start the engine.
3. Operate the engine until all the air has vented out and oil starts to flow out
of the tank.
4. Tighten the vent cap.

Starting The Engine

Without sufficient cooling water, the engine, the water pump, and other
components will overheat and suffer damage. Provide a sufficient supply of
water to the water inlets during operation.
INITIAL STARTING PROCEDURE
NOTE: For initial start up of a new engine, or for an engine that ran out of fuel
or was drained of fuel, the fuel system should be filled according to the
following procedure.
1. Squeeze the fuel line primer bulb until it feels firm.
2. Turn the ignition key switch to the "ON" position for three seconds. This
operates the electric fuel pump.
3. Turn the ignition key switch back to the "OFF" position, and squeeze the
primer bulb again until it feels firm. Turn the ignition key switch to the
"ON" position again for three seconds. Continue this procedure until the
fuel line primer bulb stays firm.
Before starting, read the Pre‑Starting Check List, Special Operating
Instructions, in the Operation Section.
eng
OPERATION
NOTICE
61
26846