Trouble Shooting Chart
PROBLEM: POSSIBLE CAUSE:
Poor speed or fuel economy: *Wrong propeller for load or conditions.
*Trim is in too far.
*Load is too far forward or too heavy. Boat has taken on water.
*Marine growth on hull. Line or anchor is dragging.
*Fuel is stale or partially blocked. Engine is worn, out of tune or under
powered.
*Improper rigging. Air intake or exhaust is partially blocked.
Engine cranks but will not start: *Out of fuel. Filter is clogged. Fuel line kinked or fuel vent plugged.
*Water in fuel.
*Engine problem (electrical, fuel pump, blockage, etc.).
*Safety shut off switch lanyard not installed.
Engine will not crank: *Drive is in gear (check operation of the throttle release).
*Battery is weak. Terminals corroded or loose.
*Engine or drive is damaged.
Engine runs but boat will not go: *Throttle release is engaged.
*Disconnected shift linkage.
*Damaged prop, or lower drive unit.
*Entangled in lines or weeds. Anchor is down.
Prop cavitates: *Trim out too far. Motor is too high.
*Weeds on prop.
*Bow heavy, damage to hull.
*Prop is damaged.
Excessive vibration: *Propeller, engine or drive unit damaged.
*Hull damaged.
Boat will not turn: *Steering unit needs fluid or has trapped air. Tiller is disconnected (helm
turns).
*Steering trunion or mechanism jammed (helm won't turn).
Electrical problems *Corroded wires, terminals or plugs.
(see wiring diagram) *Broken, loose or short circuited wires.
*Circuit breaker tripped.
*Defective switch, device or breaker.
*In-line fuse blown.
*Overloaded circuit.
Handling problems like:
Porpoises *Trimmed out too far, damaged hull (rocker), trim tabs up, stern heavy.
Runs wet *Trimmed in too far, bow heavy, trim tabs down, overloaded for conditions.
Hard ride *Stern heavy, trimmed out too far, going too fast for conditions.
Lists *Loaded to one side, trim tabs set wrong, trimmed too far in, fuel tanks uneven.
Overbank in turn *Trimmed in too far, improperly located load, throttle advanced too far.
Catches in turns *Damaged hull (hook), stern heavy, trim tabs down.
