Nautique 2008 70141 manual Section Trouble Check Chart, Performance

Section 9

Trouble Check Chart

Performance

Symptom	Possible Cause
Starter motor will not operate	• Shift handle not in NEUTRAL
	• Battery disconnect switch OFF
	• Battery and electrical connection
	loose or corroded
Engine will not start	• Emergency stop switch not in
	place
	• Starting procedure not followed
	• Fuel tank empty
Poor boat performance	• Contaminated fuel
	• Clogged fuel filter
	• Uneven load distribution
	• Improper propeller selection
	• Marine growth on hull
	• Engine problem
Poor gas mileage	• Marine growth on hull
	• Engine problem
Excessive vibration	• Damaged or fouled propeller
	• Misaligned propeller shaft
	coupling
	• Bent propeller shaft
	• Engine problem
Engine runs but boat	• Fouled or damaged propeller
makes little or no	• Engine problem
progress
Steering problem	• Corroded steering cable
	• Rudder worn
Throttle/shifting problems	• Corroded cables
	• Defective throttle return spring
	• Low transmission fluid level
	• Sticking transmission shift lever

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