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Old 12-12-2013, 11:17 AM   #1
Pistolero OP
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New one on me...

So my speedometer is only working when I have my clutch pulled in...

It's an 08 990ADV.

Anyone encountered this before?... I have found several instances of a speedo crapping out for various reasons but not exactly like this.
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Old 12-12-2013, 12:55 PM   #2
Brendan33c
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weird! I can't say what could be causing the speedo to play up, but I know its not unheard of for the speedo to fail. I can see looking back on the records kept here in NZ that my speedo was replaced for the previous owner under warranty after it failed. Suppose that doesn't really help you though as the bike is probably out of warranty now?
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Old 12-12-2013, 01:12 PM   #3
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Heh heh...Wow! That's a new one!
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Old 12-12-2013, 01:38 PM   #4
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WAY out of warranty haha...

I have seen pick up sensors fail, speedo it's self fail, ABS button fail, plugs and various wiring issues but never this...

May be time to take this ABS CRAP off all together.

The only thing I think could be related is a few weeks back I noticed it dropped to zero for a few seconds and then after that all is well... I figured it was a sensor hiccup and moved on.
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Old 12-12-2013, 02:09 PM   #5
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Have you checked your ground wires above the water pump/ clutch cover?
Right side. Two black ground wires bolted in a vertical position directly into the engine casing.

Mine were loose and it took me weeks to troubleshoot the speedo issues that I was having after checking everything I could think of and taking half of the bike apart.
I almost gave up
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Old 12-12-2013, 02:48 PM   #6
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Quote:
Originally Posted by bikyto View Post
Have you checked your ground wires above the water pump/ clutch cover?
Right side. Two black ground wires bolted in a vertical position directly into the engine casing.

Mine were loose and it took me weeks to troubleshoot the speedo issues that I was having after checking everything I could think of and taking half of the bike apart.
I almost gave up
I recently cleaned and tightened them both. I don't see how it could be a ground because like I said the speedo works fine... just so long as the clutch is pulled in...

It really does act like a switch... Clutch in... speedo works fine... clutch out... the speedo immediately drops to 0... Stupid bike ...
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Old 12-12-2013, 02:53 PM   #7
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Who needs a speedo anyway? (that's what I was convincing myself of)

So it's either the Hall effect or the master clutch switch.
I'm assuming you've tested them both.

It's a weird one....
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Old 12-12-2013, 03:01 PM   #8
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Quote:
Originally Posted by bikyto View Post
Who needs a speedo anyway? (that's what I was convincing myself of)

So it's either the Hall effect or the master clutch switch.
I'm assuming you've tested them both.

It's a weird one....

Agreed... haul ass till you see blinky blue lights... then stop ...

Have not had time to do much with it yet... It only started today.

Of course I'll post if I find what it is.
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Old 12-12-2013, 03:37 PM   #9
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Quote:
Originally Posted by Pistolero View Post
I recently cleaned and tightened them both. I don't see how it could be a ground because like I said the speedo works fine... just so long as the clutch is pulled in...

It really does act like a switch... Clutch in... speedo works fine... clutch out... the speedo immediately drops to 0... Stupid bike ...
What happens if you disable the clutch switch sensors? Send me a PM with your e-mail if you need the wiring diagram.
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Old 12-12-2013, 03:43 PM   #10
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Originally Posted by bikyto View Post
Have you checked your ground wires above the water pump/ clutch cover?
My first thought was a ground issue as well... I'd follow the clutch switch sensor wires and look for an area that may be shorted to another (presumably speedo) wire, and then recheck the final bolt to the frame.
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Old 12-12-2013, 04:20 PM   #11
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What happens if you disable the clutch switch sensors? Send me a PM with your e-mail if you need the wiring diagram.
Would the best way to do this be just to unplug the sensor?
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Old 12-12-2013, 04:22 PM   #12
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Quote:
Originally Posted by Mikef5000 View Post
My first thought was a ground issue as well... I'd follow the clutch switch sensor wires and look for an area that may be shorted to another (presumably speedo) wire, and then recheck the final bolt to the frame.
Will be giving the wiring a look over tonight and I'll clean the grounds again just to make sure.
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Old 12-16-2013, 12:57 PM   #13
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Ok had some time to make some progress... I have an alternative ABS kill switch wired in so I can turn it off and leave it off..

When I let the ABS function normally. I start off and the ABS light goes off as it should... I ride for a while and every thing seems to be working properly...

intermittently the light will flash on and the speedometer drops to zero for a second... then it comes back. The issue seems to no longer be related to the clutch..
Everything works properly most of the time like this. It only acted up a few times like this.

I then turned the bike off and engaged the permanent kill switch. When I started the bike and set off this time the speedo stayed at zero regardless of the clutch.

So I'm going to take a look around for damaged or loose wiring related to my switch but I guess it could still be the front sensor or the factory ABS button going...

I'm for sure going to see what it would cost me to get rid of this shit ABS system anyway...
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Old 12-16-2013, 04:06 PM   #14
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Further testing has shown me that every now and then the ABS light will flash and the speedo will go to zero, however it does not flash with any kind of pattern.

I'm sure it is some loose wire somewhere.

I also found that my low beam is blown (bulb has less than 100 miles and no I didnt touch it with my hands) but my horn still works. I could not catch it in time to try my horn while the speedo was reading zero.
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Old 12-16-2013, 09:26 PM   #15
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Just an observation, but I don't think you should be doing any more wiring!
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