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Ignition warning light stays on......

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Hi there everyone.

Just finished getting my "new" (to me) 850 ES Commando tidied up and about to take it out today, when I saw that the ignition light wasn't going out with revs. It had been OK a few days before.

What would the most likely cause be? Would a flattish battery cause this?

I haven't been tampering with any electrics "down below" and this was a bit of a surprise. The bike has Boyer ignition (which likewise was OK last week)

Any thoughts would be appreciated.

Andy

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Hi,

Seeing as you have not been tampering, then it is likely to be a loose connector that has come adrift. Places to look are the rectifier connections, maybe the rectifier itself is defective or a poor connection in the loom. If you have the wiring digram use that to narrow down the places to look, and get an understanding of the warning operates.

A flatish battery would not cause it as the rectified voltage would still be around the 14 volts mark, the battery would be taking higher than normal current to replenish its discharged state.

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Previously wrote:

Hi,

Seeing as you have not been tampering, then it is likely to be a loose connector that has come adrift. Places to look are the rectifier connections, maybe the rectifier itself is defective or a poor connection in the loom. If you have the wiring digram use that to narrow down the places to look, and get an understanding of the warning operates.

A flatish battery would not cause it as the rectified voltage would still be around the 14 volts mark, the battery would be taking higher than normal current to replenish its discharged state.

Hi there,

Took the opportunity to check all the wiring whilst I charged up the battery. Everything looked secure, battery back in and fired up no problem with the ignition light promptly going out off the idle.

So a bit of a mystery, will have to wait and see.........................but finally Iget to take it out for a run!

Thank you for the advice Ashley.

Andy

Permalink

Previously wrote:

Hi,

Seeing as you have not been tampering, then it is likely to be a loose connector that has come adrift. Places to look are the rectifier connections, maybe the rectifier itself is defective or a poor connection in the loom. If you have the wiring digram use that to narrow down the places to look, and get an understanding of the warning operates.

A flatish battery would not cause it as the rectified voltage would still be around the 14 volts mark, the battery would be taking higher than normal current to replenish its discharged state.

Thanks Ashley,

Had a look around with a circuit diagram, all seemed secure. Stuck the battery back in after a charge and all well when she started first go with the ignition light going out off idle.

so a bit of a mystery, but at least I gat to go out for a run now!

Andy

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Hi Andrew, Classic sign of a loose / corroded / dirty terminal. Best idea is to monitor as you say and when the tank, Battery are next out and the seat is up give the terminals a good check over not forgetting the wire entry point into the terminal as well.

 


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