5-1EEMU01752¯TROUBLESHOOTINGA problem in the fuel, compression, or ignition systems can cause poor starting, loss ofpower, or other problems. The troubleshooting chart describes basic checks and possibleremedies. (This chart covers all Yamaha outboard motors. Therefore, some items may notapply to your model.)If your outboard motor requires repair, bring it to a Yamaha dealer.If the engine warning indicator is flashing, consult your Yamaha dealer.Trouble Possible Cause RemedyA. Starter will notoperate.1. Battery capacity weak or low. 1. Check battery condition. Use battery ofrecommended capacity.2. Battery connections loose or corroded. 2. Tighten battery cables and clean bat-tery terminals.3. Fuse for electric start circuit blown. 3. Check for cause of electric overloadand repair. Replace fuse with one ofcorrect amperage.4. Starter components faulty. 4. Have serviced by a Yamaha dealer.5. Shift lever in gear. 5. Shift to neutral.B. Engine will not start(Starter operates).1. Fuel tank empty. 1. Fill tank with clean, fresh fuel.2. Fuel contaminated or stale. 2. Fill tank with clean, fresh fuel.3. Fuel filter clogged. 3. Clean or replace filter.4. Starting procedure incorrect. 4. Read “STARTING ENGINE” section.5. Fuel pump malfunctions. 5. Have serviced by a Yamaha dealer.6. Spark plug(s) fouled or incorrect type. 6. Inspect spark plug(s). Clean or replacewith recommended type.7. Spark plug cap(s) fitted incorrectly. 7. Check and re-fit cap(s).8. Poor connections or damaged ignitionwiring.8. Check wires for wear or breaks.Tighten all loose connections.Replace worn or broken wires.9. Ignition parts faulty. 9. Have serviced by a Yamaha dealer.10. Engine stop switch lanyard notattached.10. Attach lanyard.11. Engine inner parts damaged. 11. Have serviced by a Yamaha dealer.