
Setting Trim Angle While Running Engine at Idle Speed
The exhaust relief hole on the outboard can become submerged on some
boats if the engine is trimmed full in while running at idle speed. This may result
in exhaust restriction, rough idle, excessive smoke, and fouled spark plugs. If
this condition exists, trim the outboard up until the exhaust relief hole is out of
the water.
a -
Relief hole above waterline (correct)
b -
Relief hole submerged (wrong)
Operating in the Event of Engine Failure (Multiple‑Engine
Applications)
IMPORTANT: Steering may be limited with one or more engines not running.
If an engine fails and the operator is going to return to port on the other
engines, the failed engine must be trimmed to the full up position to ensure that
the remaining functional engines do not enter Engine Guardian protection due
to the potential for drive collision.
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 two hours of operation, run the engine at varied throttle
settings up to 4500 RPM or three‑quarter throttle. Changes in throttle
should be gradual and extended time at idle should be avoided.
2. For the next eight hours of operation, avoid continuous operation at full
throttle for more than five minutes at a time.
a
b
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OPERATION
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