The wiring is simple. Take the supplied rectifier and hook it up as follows:
Rectifier input to the stator yellow and chassiss ground.
Rectifier output directly to the fan. It will run any time the bike is running.
Or add a switch in series with one of the fan wires and control it manually.
Or add a thermoswitch in series with one of the fan wires and the fan will turn on at the preset temperature and turn off when the temperature drops.
Your original bike wiring is chassis grounded. The method above isolates the rectifier output from ground. In essence there are only two ways to go.
1) grounded stator requires isolated rectifier output (as above method)
2) stator modified to be ungrounded, then rectified output can be chassis grounded
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2011 EC250E
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