Engine Break‑In Procedure - Mercury 15 EFI SeaPro Installation, Operation & Maintenance Manual

4. Tiller handle models with manual or electric start, have a quick reference
decal on the tiller handle that shows the sequence for starting the engine.
Use this quick reference for cold or hot starting.
a
a - Quick reference decal
b - Shift lever
c - Throttle grip friction knob
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 2000 RPM or at approximately half throttle.
2. For the second hour of operation, run the engine at varied throttle settings
up to 3000 RPM or at three‑quarter throttle, and 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 ‑ Tiller Handle Models
Before starting, read the Prestarting Check List, Prestarting Instructions,
and Engine Break‑in Procedure in this section.
OPERATION
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