2011 Yamaha Motorsports FX Nytro XTX Owners Manual - Page 85
2011 Yamaha Motorsports FX Nytro XTX Manual
Page 85 highlights
Troubleshooting ESU12887 Engine turns over but does not start 1. Fuel system No fuel supplied to combustion chamber • No fuel in tank: Supply fuel. ↓ • Clogged fuel line: Clean fuel line. ↓ • Clogged injector: Ask a Yamaha dealer to inspect. G Fuel supplied to combustion chamber • Flooded engine: Crank engine or wipe the spark plugs dry. Electrical system G Poor spark or no spark • Spark plugs are dirty with carbon or are wet: Remove carbon or wipe the spark plugs dry. Replace if necessary. ↓ • Faulty ignition system: Ask a Yamaha dealer to inspect. ↓ • T.O.R.S. malfunction: Disconnect the throttle switch connectors and connect the wire harness connectors together to bypass the T.O.R.S. WARNING! Before bypassing the T.O.R.S., make sure that the throttle returns properly to the fully closed position. The T.O.R.S. is an important safety device; in the case of a malfunction, take the snowmobile to a Yamaha dealer immediately for repair. G [EWS00561] 1 2. 1. Throttle switch connector 3. G Compression Insufficient • Loose cylinder head nuts: Tighten nuts properly. ↓ • Worn or damaged gasket: Replace gasket. ↓ • Worn or damaged piston and cylinder: Ask a Yamaha dealer to inspect. Discharged battery If the battery is discharged, the engine can be started using a fully-charged 12-volt battery and jumper cables. EWS00580 WARNING G Connect the jumper cables only to the battery terminals. Do not connect them to the frame or any wire or other lead. 79