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Diagnose Lower Unit Malfunction

Trouble Check Chart

Condition

Engine stalls when

engaging gear

Engaging gear(s) has no

effect on propulsion

Loss of power. (Assuming

engine is OK)

Engine shakes the boat

Clutch will not engage or

disengage

Diagnostic Information and Procedures

Possible cause

Idling speed set too low.

Propeller shaft bearings damaged,

lacking lubrication or seized.

Clutch out of adjustment.

Driveshaft broken or splines damaged. Replace.

Chipped or worn dog clutches.

Propeller not secured correctly (fallen

off).

Propeller bush slipping.

Bent or worn propeller.

Failed propeller bush.

Bent driveshaft or propeller shaft.

Damaged propeller.

Seized shift rod.

Clutch shaft and clutch rod have

become detached.

Seized / broken remote control cable.

Problem at control box end.

Right Hand Rotation Unit:

Correction / Reference Item

Adjustment.

Replace.

Adjustment.

Replace.

Inspection or retighten.

Replace.

Repair or replace.

Replace.

Inspection.

Replace.

Inspection or replace.

3A-1

ZAJ6113104001

Table of Contents

Chapters

Table of Contents

Right Hand Rotation Unit; Diagnostic Information And Procedures; Diagnose Lower Unit Malfunction - Suzuki GF60A Service Manual