PERIODIC MAINTENANCE AND MINOR REPAIR6-436EAU25911Troubleshooting chartsStarting problems or poor engine performanceWARNINGEWA10840Keep away open flames and do not smoke while checking or working on the fuel system.Check the fuel level inthe fuel tank.1. Fuel There is enough fuel.There is no fuel.Check the compression.Supply fuel. The engine does not start.Check the compression.Operate the electric starter.2. Compression There is compression.There is no compression.Check the ignition.Have a Yamaha dealercheck the vehicle.Remove the spark plugsand check the electrodes.3. Ignition Wipe off with a dry cloth and correct thespark plug gaps, or replace the spark plugs.Have a Yamaha dealer check the vehicle.The engine does not start.Have a Yamaha dealercheck the vehicle.The engine does not start.Check the battery.Operate the electric starter.4. Battery The engine turns overquickly.The engine turns overslowly.The battery is good.Check the battery lead connections,and charge the battery if necessary.DryWet Open the throttle halfway and operatethe electric starter.U5AH19E0.book Page 43 Thursday, May 13, 2004 4:23 AM
