2004 Yamaha Motorsports Venture 600 Owners Manual - Page 84

ESU00294 9- TROUBLESHOOTING G A. Engine turns over but does not start 1. Fuel system No fuel supplied to combustion chamber G No fuel in tank ...Supply fuel. G Clogged fuel line ...Clean fuel line. G Clogged carburetor ...Clean carburetor. Fuel supplied to combustion chamber G Flooded engine (too much choke) ...Crank engine with throttle open or wipe the spark plugs dry. 2. Electrical system Poor or no spark G Spark plugs are dirty with carbon or are wet ...Remove carbon or wipe the spark plugs dry; replace if necessary. G Faulty ignition system ...Ask a Yamaha dealer to inspect. G T.O.R.S. system malfunction ...Disconnect the carburetor switch connectors and connect the wire harness connectors together to bypass the T.O.R.S. For SXV60 Short circuit in the lighting system, signal system and meter system (except for the ignition system) ...Disconnect the relay with the white coupler (not the black coupler) to activate the ignition circuit so that the engine can be started. Ask a Yamaha dealer to inspect the electrical circuits as soon as possible. 1 Relay with the white coupler 3. Compression Insufficient G Loose cylinder head nuts ...Tighten nuts properly. G Worn or damaged gasket ...Replace gasket. G Worn or damaged piston and cylinder ...Ask a Yamaha dealer to inspect. B. Engine does not turn over with the recoil starter 1. Seized engine ...Seizure is caused by poor lubrication, inadequate fuel, or an air leak-Ask a Yamaha dealer to inspect. WARNING @ G G 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. @ 9-1