OPERATION
37
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.
Engine Break-in Procedure
IMPORTANT: Failure to follow the engine break-in procedures can result in poor performance throughout
the life of the engine and can cause engine damage. Always follow break-in procedures.
1. For the first hour of operation, run the engine at varied throttle settings up to 3500 RPM or at
approximately half throttle.
2. For the second hour of operation, run the engine at varied throttle settings up to 4500 RPM or at
three-quarter throttle, and during this period of time, run it at full throttle for approximately one
minute every ten minutes.
3. For the next eight hours of operation, avoid continuous operation at full throttle for more than five
minutes at a time.
Starting the Engine - Remote Control Models
Before starting, read the pre-starting check list, special operating instructions, and engine break-in
procedure in the Operation 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. Open the fuel tank vent screw (in filler cap) on manual venting type fuel tanks.
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