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17-08-13, 05:54 PM
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#1 |
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Guest
Posts: n/a
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K7 speedo reads erratically.
My bike (K7) has been really optimistic recently and keeps registering speeds of over 150mph! Last time it did this, I was stuck behind a lorry.
Any ideas why it has gone crazy or was I just behind a really really fast lorry? (It can register speed changes of over 20mph from one figure to the next) Any help would be great, has anyone else experienced this? |
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17-08-13, 06:11 PM
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#2 |
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Member
Mega Poster
Join Date: Jul 2011
Location: Somewhere over there
Posts: 3,245
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Re: Digital speedo is going crazy
Sounds like the speedo drive needs looking at. Potentially it maybe broken, hence giving out false/optimistic readings
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 BMW F800ST |
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17-08-13, 06:12 PM
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#3 |
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Guest
Posts: n/a
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Re: Digital speedo is going crazy
Common problem of this sort is the speed rotor which can deteriorate. This is located as the "spacer" on the left side of the axle. If you have a haynes check out the section on removing the front wheel. Otherwise there are many threads here about the diagnosis and treatment of this affliction (utiliser le chercher
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17-08-13, 06:56 PM
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#4 |
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Member
Mega Poster
Join Date: Apr 2010
Location: Newcastle upon Tyne, Just south of salad dodging country
Posts: 7,750
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Re: Digital speedo is going crazy
Sensor sounds goosed. You need to test the sensor with a multimeter and a simple wiring rig
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RIP Reeder 20/07/1988 - 21/03/2012. Always missed squire!!! Every year we meet old friends, gain some new ones, lose old ones and you always remember them all. “Live as if you were to die tomorrow. Learn as if you were to live forever.” Mahatma Gandhi |
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17-08-13, 08:37 PM
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#5 |
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No, I don't lend tools.
Mega Poster
Join Date: Jul 2003
Location: Skunk Works, Nth London
Posts: 8,680
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Re: Digital speedo is going crazy
If it's reading erratically, it could be the rotor, if it reads erratically but also says you're doing a 150 then it's more likely damage to the wiring between the loom and the pickup at the front hub.
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If an SV650 has a flat tyre in the forest and no-one is there to blow it up, how long will it be 'til someone posts that the reg/rec is duff and the world will end unless a CBR unit is fitted? A little bit of knowledge = a dangerous thing. "a deathless anthem of nuclear-strength romantic angst" |
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18-08-13, 08:47 AM
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#6 |
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Guest
Posts: n/a
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Re: K7 speedo reads erratically.
cheers guys, Im going to have a good look at it today
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