1987-2003 Yamaha YFZ350 Banshee supplementary service manual, Page 229Get this manual
IGNITION SYSTEM
THROTTLE OVERRIDE SYSTEM (T.O.R.S The ignition circuit on this model consist of the CDI magneto, CDI unit, ignition coil, spark plug, engine stop switch, T.O.R.Scontrol unit, throttle switch and carburetor switchesWhen the engine stop switch (4) is turned to "STOP", the engine stop control current [A] flows to the ground through it; then, the engine will not start
Operation of T.O.R.S1) Current [gl flows into the T.O.R.Scontrol unitwhere it is decreased by resistance The current then flows into the carburetor switches (7) and (8) or throttle switch As result, no current flows into the thyristorthereby keeping the engine running