Mercury 250 XS OptiMax Operation, Maintenance & Installation Manual page 52

STARTING PROCEDURE
1. Lower the outboard to the RUN position. Make sure all the cooling water
intake holes are submerged.
2. Open fuel tank filler cap vent screw (manual venting fuel tanks).
3. Squeeze the fuel line primer bulb several times until it feels firm.
4. Set the lanyard stop switch to the RUN position. Read the Lanyard Stop
Switch safety explanation and warning in the General Information
section.
OPERATION
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