Question about Harley Davidson XL 1200 S Sportster Sport Motorcycles

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Have an electrical issue battery voltage at 12.44v but when fuse left second from top is replaced voltage falls to 4.11v When this fuse is in taco etc clicking even though ignition is off.

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I'm at a loss to tell you very much since you didn't tell me what year and model bike you're working on. But, you said that something was clicking even with the ignition off. This sounds like a circuit breaker activating. This is why your voltage is dropping. You have a short somewhere. Your meter reads 12 volts when the circuit breaker is "broken". Then when the circuit breaker resets, the short pulls the voltage down to 4 volts until the breaker again trips. This really sounds like the main circuit breaker under the dash of a Softail to me. Investigate where the clicking is coming from and you'll probably find a small metal device with two screws on it. Feel of it and if it is what's clicking trace to where those wires are going.

Good Luck

Posted on Apr 10, 2011


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