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  #1  
Old 10-10-2014
cranky dude's Avatar
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Wr250f starter problem

G'day, I've got an issue with my 05 wr250f starter motor. It started as an intermittent problem but is now a persistent one.

What's happening is the starter motor is running when the ignition is switched on, we disconnected the power to the starter trail side and carried on old school with the kick starter.

I've since disassembled the stop/start button and cleaned/inspected but seemed fine. Checked the relay tho may have been the wrong one?

Reassemble it and it was working as it should but the problem returned mid ride again.

Any ideas what it could be or what to check next? Maybe a short in the harness?

Cheers cranky
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Old 10-10-2014
MrLieu MrLieu is offline
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starter solenoid / relay problem ?
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Old 10-10-2014
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I you have a meter or an old blinker with bulb and two wires you can run checks of each component each side of the entry of wires starting with the starter switch.


It may be faulty or full of crud shorting the power across it.


I would next check the solenoid for corrosion, inspect and clean and test.


With checking for a wiring short, the meter would be best as you could connect same to the nearest negative connection and see if it reads voltage, it shouldn't, if it does I would remove each component from connection one at a time till I honed in on the affected component or length of negative wire that reads with voltage and look at what is connected.


I would also remove the starter motor open it up clean and inspect, while there check brushes for excessive wear and replace, also check for loose components, wires, crud that may cause a short here. Also check the boots where wires connect to the starter.


I would disconnect the ignition switch and if you have the non ADR starter switch I would plug it in and see if it does it, if yes then the problem is else where, if no then the ignition is at fault and could be full of crud or faulty.



Warning!: If you accidently short full power from the battery leads you may blow a diode and or the sacrificial fuse with in the wiring harness. These are located on the harness between the steering head and the down tubes of the frame. They are square shaped about 10-12 mm square. One is a diode the other is a sealed fuse which appears the same or similar to the diode, both are listed in parts description as diodes with different part numbers. If you blow these the bike wont go and you could damage the voltage reg rectifier. If you do blow them they will cost around $30 Aus and you will have to wait for them. Wreckers will not separate them from the harness either.

This isn't comprehensive but I hope it helps, electrical issues are never an easy go straight to it fix.
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Old 10-10-2014
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Thanks mate, that's a lot more comprehensive then I expected I'd get.

I'll start at the switch and work my way through the system. Thanks again mate
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Old 10-10-2014
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Some handy tips..

check out this thread....

http://www.dirtbikeworld.net/forum/s...d.php?t=100136
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Old 11-10-2014
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Thanks Tim,

Still no luck with this one I have checked everything and all seem ok, tho I'm guessing the indentations on these brushes are the wear limit?


After cleaning/inspecting everything and re-assembling the starter worked off the button on the first go but then reverted back to running off the key. Might go back to the switch and start again.


cheers
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Last edited by cranky dude; 03-08-2015 at 07:05 PM.
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Old 12-10-2014
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live wire hitting earth somewhere, most likely switch.
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Old 16-10-2014
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All sorted, thank blokes
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Old 16-10-2014
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Quote:
Originally Posted by cranky dude View Post
All sorted, thank blokes
And?
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Old 17-10-2014
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It was the USB charger I put on, (cheap ebay job) tapped it into ignition switched power and it was fine for months. It died an started playing silly buggers with the electrics.

Had me beat, took it to the local bike shop and they got it sorted for me.


Cheers
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