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4t - lost 12v supply


thall1
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Recently my bike overheated due to the fan not working.. fitted a new regulator and all was good. 
bike hasn’t been used due to gearbox strip down but now all rebuilt. 
bike ran at home with no issues in either the engine/ gearbox or the fan.

Took it out Saturday and had intermittent fan for a few minutes then I lost all 12v on the bike again?… 

the bike starts and runs fine with fuel solenoid on the manual position .. fan will spin with a separate 12v battery connected.

The regulator has five wires on the plug… black (earth)..  two yellow from the stator and two blue which I assume is 12 volts output.

what should I be seeing on the input to the regulator i.e on the two yellow wires?

 

 

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Update… found the issue…. A Pin on a waterproof plug had snapped internally… it was being held in place by the grommet in the back of the plug  which made it seem it was in place but in reality it was being pushed out when the connection was made 

  • Haha 1
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