Sensor preventing starting - Harley Davidson Street Forum - Street 500 and 750
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post #1 of 4 Old 11-23-2018, 06:11 AM Thread Starter
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Sensor preventing starting

I recently had a bit of trouble getting my Street 750 to start after I had been messing about with it.

Anyway, all is sorted now but I had a strange issue as follows:

When the bike would not start after about 5 turns of the starter the starter button failed to operate.

I left it a few minutes and the starter turned again for roughly the same amount of times then would not operated.

There was no 'clicking' sound or any other sound to be heard when the button would not operate.

The starter again worked after a few minutes and this time the bike started.

All is running fine now an it starts at first touch of the starter.

I was just wondering if anyone knew if there was perhaps some sensor that detects the starter, or some other part, getting warm which temporarily stops the starter operating until it has cooled down?


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post #2 of 4 Old 11-23-2018, 11:32 AM
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There's the crank position sensor. If the ECU briefly lost contact with that, nothing will happen. The ECU will not know when to feed petrol or sparks.

It sounds like one of those, Hey, my computers gone really stupid.' 'Have you turned it off and then turned it back on again?' moments.

Just the sort of problem where a little bit of masterly inactivity proves successful.
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post #3 of 4 Old 11-23-2018, 01:26 PM
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Crank sensors can go when wet- i have known bikes throw codes after washing with a hose etc or a real wet ride.
Crank sensors can cause all sorts of issues but easy to check out with a meter.
Glad your ride is ok now.

Rowle uk
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post #4 of 4 Old 11-23-2018, 08:56 PM
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Under the Seat there is a Starter Solenoid. Positive Batt cable is attached. Has a plug with 2 wires for the Switch. And the Output side goes to the Starter.

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