Mercury 300R HD CMS Mechanical User Manual

Starting the Engine
Before starting, read the Prestarting Check List, and Engine Break‑in
Procedure in this section.
NOTICE
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.
1. Push down on the port side of the service access door to unlock and open
the door.
64230
Push here to unlock
OPERATION
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Mercury 300R HD CMS Mechanical Specifications

General

Brand	Mercury
Model	300R HD CMS Mechanical
Category	Outboard Motor
Language	English