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Starter TroubleshootingExpand / Collapse
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Posted 05 October 2008 09:46


Rush Hour Racer

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Ok, with ignition on and press start switch I get the crrrr noise from the relay switch but starter motor does not turn.

following manual troubleshooting - Battery good and have got to part where it says: Connect the starter motor terminal to the battery positive terminal directly( do not use thin wires).If motor turns then possible fault with relay and if motor does not turn then faulty motor.

I connected the two and turn ignition on a everything is dead, no lights nothing, disconnect and back to normal but motor does not turn.

What am i doing wrong? this may be a stupid question but if you connect starter terminal directly to battery are you not bypassing any switches, therefore if the motor is fine it would turn without having to press starter button?

 http://www.sabikers.co.za/mybb/index.php

Post #447127
Posted 05 October 2008 09:54


London Biker

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Correct.

If you short the starter directly from the battery it should turn over as soon as you touch the wires on both terminals.

Sounds like a dead starter.

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Post #447129
Posted 05 October 2008 10:29


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If you can disconnect the starter mechanically so its not trying to drive anything and repeat the test this should identify whether its the motor or the drive, if there does not appear to be a problem in the in the driven mechanism i would check the condition and length of the brushes, even if the motor turns directly off the battery it could still be stalling under load.
You can also put a meter accross the motor and checkfor a break in the winding.
Post #447139
Posted 05 October 2008 11:00


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Cool, thanks for the advice. Next step disconnect starter motor.

I'm glad it's raining today cos I'd be pissed off for missing another weekends riding if it were sunny

 http://www.sabikers.co.za/mybb/index.php

Post #447146
Posted 05 October 2008 20:00


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zeph11 (05/10/2008)
If you can disconnect the starter mechanically so its not trying to drive anything and repeat the test this should identify whether its the motor or the drive, if there does not appear to be a problem in the in the driven mechanism i would check the condition and length of the brushes, even if the motor turns directly off the battery it could still be stalling under load.
You can also put a meter accross the motor and checkfor a break in the winding.

Ok, Motor off - repeated test and it works.

Further checks ongoing

Thanks

 http://www.sabikers.co.za/mybb/index.php

Post #447343
Posted 06 October 2008 11:10


Learner

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Have you tried starting the bike off a known good battery. A car battery is fine to use.

Sometimes a battery can have enough power to do everything except crank a cold engine.

Post #447632
Posted 06 October 2008 12:31


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Could just be a bad earth on the starter - make sure the earth terminal is clean and try again...

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Post #447688
Posted 06 October 2008 19:46


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Liamcbr (06/10/2008)
Have you tried starting the bike off a known good battery. A car battery is fine to use.

Sometimes a battery can have enough power to do everything except crank a cold engine.

The battery in the bike is only 3 months old and I charged it up with optimate and was reading 12,5 with the meter.

 http://www.sabikers.co.za/mybb/index.php

Post #447912
Posted 06 October 2008 19:53