Lifting Outboard; Determining The Mounting Height Of The Outboard - Mercury 25 Jet 4-Stroke Manual

ENGINE INSTALLATION
TOP COWL INSTALLATION
1. Engage the front hook and push the top cowl onto the lower
cowl.
2. Push the cowl latch down to lock the cowl in place.

Lifting Outboard

Use the lifting eye located aft of the flywheel to support the engine
when installing the outboard.

Determining the Mounting Height of the Outboard

The following outboard mounting height settings will work good for
most applications, however, because of different boat/hull designs,
the setting should be rechecked by test running the boat. Refer to
Water Testing.
• Installing the outboard too high on the transom will allow the
water intake to suck in air and cause cavitation. (cavitation will
cause the engine to overspeed in spurts and reduce thrust).
This condition should be avoided by proper height setting.
• Installing the outboard too low on the transom will allow
excessive drag.
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