Trouble Recovery
EMU40972
Troubleshooting
This section describes the likely causes and remedies for problems, such as those in the fuel, compression, and ignition systems, poor starting, and loss of power. Please note that all of the items in this section may not apply to your model.
If your outboard motor requires repair, bring it to a Yamaha dealer.
If the engine
Starter will not operate.
Q. Is remote control lever in gear? A. Shift to neutral.
Q. Is battery capacity low or weak?
A. Check battery condition. Use battery of recommended capacity.
Q. Are battery connections corroded or loose?
A. Tighten battery cables and clean battery terminals.
Q. Is fuse for starter relay or electric circuit blown?
A. Check for cause of electric overload and repair. Replace fuse with one of correct am- perage.
Q. Are starter components malfunctioning? A. Have serviced by a Yamaha dealer.
Engine will not start (starter operates).
Q. Is clip on engine
A. Install clip to engine
Q. Is fuel tank empty?
A. Fill tank with clean, fresh fuel.
Q. Is fuel contaminated or stale?
A. Fill tank with clean, fresh fuel.
Q. Is fuel filter clogged?
A. Clean or replace fuel filter.
Q. Is fuel pump malfunctioning?
A. Have serviced by a Yamaha dealer.
Q. Are spark plugs fouled or of incorrect type? A. Inspect spark plugs. Clean or replace with recommended type.
Q. Are ignition parts malfunctioning? A. Have serviced by a Yamaha dealer.
Q. Is ignition wiring damaged or poorly con- nected?
A. Inspect wires for breaks and wear. Have connections tightened and broken or worn wires replaced by a Yamaha dealer.
Q. Are engine inner parts damaged? A. Have serviced by a Yamaha dealer.
Engine idles irregularly or stalls.
Q. Are spark plugs fouled or of incorrect type? A. Inspect spark plugs. Clean or replace with recommended type.
Q. Is fuel system clogged?
A. Inspect for pinched or kinked fuel line or other obstructions in fuel system.
Q. Is fuel contaminated or stale?
A. Fill tank with clean, fresh fuel.
Q. Is fuel filter clogged?
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