Jet Maintenance; Worn/Dull Impeller - Mercury 25 EFI Service Manual

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Tilt tube ‑ Lubricate through fittings.

Lubricate threads on transom clamp screws (if equipped).

Steering cable grease fitting (if equipped) ‑ Rotate the steering wheel to fully retract the steering cable end into the

outboard tilt tube. Lubricate through fitting.

Incorrect cable lubrication can cause hydraulic lock, leading to serious injury or death from loss of boat control. Completely

retract the end of the steering cable before applying lubricant.

Lubricate the following with lightweight oil.

Steering link rod pivot points ‑ Lubricate pivot points.

Jet Maintenance

The intake of gravel through the pump can round off and wear the leading edges of the impeller. Some conditions that could be

experienced from a worn/dull impeller are as follows:

Noticeable performance loss, especially on acceleration

Difficulty getting the boat on plane

Steering cable end

90-8M0105568 eng MARCH 2016

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