Your Nu50 is equipped with an automatic choke of sorts. If you look on the right side of your engine, on the cylinder head, there is a valve body with 3 lines running to it. Be very careful if you try to remove these lines, they connnect to plastic that breaks easily. One line feeds gas into the valve, one feeds air, and the last goes to the carburetor. There is a bimetallic strip inside that senses engine temperature. When cold, it directs gas to the carburetor. When warm, it's a gas/air mix. When hot it's just air. There is a spindle inside that slides back and forth to open the correct pathway for what is desired. If this is stuck, you may not have any choke operation at all. I'll bet that if you hold your throttle wide open and kick the bike about 10 times, it will start.
Posted on Jul 1, 2004, 4:00 PM from IP address 24.161.57.200
