2008 Yamaha Snowmobiles FX NYTRO Factory Service Manual, Page 280Get this manual

2008 Yamaha Snowmobiles FX NYTRO Factory Service Manual, Page 280

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FUEL INJECTION SYSTEM Fault code No37 Item ISC (idle speed control) valve (stuck fully open) Speed sensor Fuel system voltage (monitor voltage) 43 Symptom Engine speed is high when the engine is idlin