186
ENGINE
DIAGNOSTIC CHART
Problem Possible Cause
Power Loss Damaged propeller
Improper trim angle
Spark plugs fouled
Fuel system malfunction
Hull bottom fouled with debris
Excess water in bilge (leak)
Excessive Vibration Damaged propeller
Damaged propeller shaft
Loose/broken motor mount
Steering pivot loose or damaged
Debris caught on propeller
Ignition malfunction
Motor mount bolts loose (transom)
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