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Triumph SuperSports Triumph Four-Cylinder Enthusists: TT600, Speed4, and Daytona 600/650

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Old 11-26-2012, 11:50 AM   #1 (permalink)
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Why are my headlights draining my battery

Could this be a relay or something. When they are unplugged the battery fina at tickover but when I plug them back in it drains the battery quite fast at tickover. If its revving its fine.

I know people have said dodgy R/R but I have tried a couple of them now and its the same.
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Old 11-26-2012, 12:29 PM   #2 (permalink)
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You have a generating system failure - if not the R/R, probably the stator.

Simplest test for stator - unplug it and leave ignition/engine off.
Measure resistance from any of the three pins to any engine ground point:
if short, your stator is toast.
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Old 11-26-2012, 04:01 PM   #3 (permalink)
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What is your charging voltage at idle?
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Old 12-02-2012, 07:11 PM   #4 (permalink)
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Condition of your battery?

Not the volts, but the CCA. New they are in the 180 ball park. It can show 12+ volts but with no amps behind it, it won't do anything and the lights will drain the battery very quickly.
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Old 12-02-2012, 07:15 PM   #5 (permalink)
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^^^ irrelevant once bike is started
Definitely a generating system problem.
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