My speedo quit working! - TwoWheelForum: Motorcycle and Sportbike forums
 
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post #1 of 7 (permalink) Old 05-28-2007, 10:56 PM Thread Starter
 
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My speedo quit working!

I have a 2000 ZX-6R and my speedometer quit working. It's not broken because the needle still cycles when I turn the ignition on, so I know that it just isn't recieving an input. Also because it's not counting miles anymore.

Does anyone know which sensor provides the input for the speedometer?

There is a pulse generator type sensor mounted in the cover for the front drive gear. I think that might be the one but I'm not sure.

Any help would be great.

Thanks,
Ryan
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post #2 of 7 (permalink) Old 05-28-2007, 11:55 PM
 
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Most don't have a sensor, but run off a cable from the front sprocket. My CBR uses a cheap plastic adapter from the nut holding on the front sprocket to the speedo cable. It has cracked several times, but the cable runs fine. Check your manual to see what type your bike uses.
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post #3 of 7 (permalink) Old 06-02-2007, 08:09 PM
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Actually that isn't correct NW. Most of these bikes in the past 10 years run off a front sprocket speedo sensor. You'll find it on the front sprocket cover. It is a small sensor that picks up the rotation of the front sprocket.

First check for anything obviously wrong, like a cut wire.

Has the bike been laid down on that side? That would add some problems if it was smashed or rashed.

Do you have a aftermarket front sprocket on it? That MAY (not likely) cause problems.

Finally, the connections.. clean it with electrical cleaner or maybe brake cleaner.. let dry out real good.. then put some di-electric gel (like you use for tune ups) in the harness clip. Put it back together and check it.

If not.. again.. maybe the pick up went bad...




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post #4 of 7 (permalink) Old 06-02-2007, 08:33 PM
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Quote:
Originally Posted by Gas Man View Post
Actually that isn't correct NW. Most of these bikes in the past 10 years run off a front sprocket speedo sensor. You'll find it on the front sprocket cover. It is a small sensor that picks up the rotation of the front sprocket.

First check for anything obviously wrong, like a cut wire.

Has the bike been laid down on that side? That would add some problems if it was smashed or rashed.

Do you have a aftermarket front sprocket on it? That MAY (not likely) cause problems.

Finally, the connections.. clean it with electrical cleaner or maybe brake cleaner.. let dry out real good.. then put some di-electric gel (like you use for tune ups) in the harness clip. Put it back together and check it.

If not.. again.. maybe the pick up went bad...
check how much chain grease and road debris are under the sprocket cover and speedo sensor. also check the fuses too. my old sv blew a fuse once that took out the odometer and blinkers

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post #5 of 7 (permalink) Old 06-02-2007, 09:13 PM
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Yeah that should be done without a doubt and I guess I assumed peeps would get that with out saying it...




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post #6 of 7 (permalink) Old 06-03-2007, 01:27 AM Thread Starter
 
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Gas Man:

I was 99 percent sure that the sensor on the front sprocket cover was the one, I see no other purpose for it, but I just wanted to be sure before I started checking it out.

I definitely do not have a blown fuse because my speedometer will start working sporadically. So, I am leaning towards a poor connection or the sensor may be failing.

The amount of grease/dirt behind the cover is no issue because I just cleaned it about a month ago and I had the cover off yesterday and it is still pretty clean.

Thanks
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post #7 of 7 (permalink) Old 06-05-2007, 02:20 PM
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Well check it out... and with a service manual it might tell you what you can do to "check" the sensor...like hooking it up to a olhm meter




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