[Q] Speedo works but doesn't register speed - Honda RC51 Forum : RC51 Motorcycle Forums
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post #1 of 20 (permalink) Old 03-11-2012, 01:05 PM Thread Starter
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[Q] Speedo works but doesn't register speed

Picked up a 2000 for 2700, it has had a tough life. Obvious signs of being laid down even though the AF plastics are fine.

Problem IM having is the Speedo turns on, lights up, tracks rpm and f1 codes but won't register speeds.

Registers 189 or something when turned on (start up), but while driving no dice, nothing.

All connections are solid. Is it an electrical thing or vacuum? But the Speedo its self is cracked

Any ideas are appreciated.

I will introduce my self when I get near a computer.

V/r

Jon
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post #2 of 20 (permalink) Old 03-11-2012, 07:23 PM Thread Starter
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2000 RC51 - sold

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post #3 of 20 (permalink) Old 03-11-2012, 07:30 PM
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http://www.rc51.info/index.php?page=service

here is the manual.

Attached is the section over the speed sensor
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post #4 of 20 (permalink) Old 03-11-2012, 07:40 PM
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Could be the speedo sensor or wiring.
Got a speedo-healer installed? Try reconnecting the OEM connectors.
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post #5 of 20 (permalink) Old 03-11-2012, 08:38 PM Thread Starter
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Originally Posted by madbuyer View Post
http://www.rc51.info/index.php?page=service

here is the manual.

Attached is the section over the speed sensor
Going to check it out next week, have the boys this week.

Thank you for the response.

Bikes owned:
2003 GSXr 750 -sold
2001 TL1000r -sold
2000 RC51 - sold

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post #6 of 20 (permalink) Old 03-11-2012, 08:43 PM Thread Starter
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Could be the speedo sensor or wiring.
Got a speedo-healer installed? Try reconnecting the OEM connectors.
I dove in to it late this afternoon, fairings ate held together by zip ties... Man. AF fairings with nut washer and bolt in tight a$$ places.

Downloaded the service manual, gonna give that a good read but I have a feeling the Speedo is shot.

Thank you for the reply, I will be in coco beach next weekend. Not to far from sota.

Bikes owned:
2003 GSXr 750 -sold
2001 TL1000r -sold
2000 RC51 - sold

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post #7 of 20 (permalink) Old 03-13-2012, 07:25 PM Thread Starter
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So the connections are connected. Need a meter to test them. But how do you get the damn speed sensor out?

The speedo reads 3560 miles so its been messed with or broke for a good while..

Bikes owned:
2003 GSXr 750 -sold
2001 TL1000r -sold
2000 RC51 - sold

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post #8 of 20 (permalink) Old 03-13-2012, 08:33 PM
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That looks to be the easy part...

I like the all silver by the way



The very first schoolbook that was written had God all over it. --Dave Mustaine
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post #9 of 20 (permalink) Old 03-13-2012, 08:47 PM Thread Starter
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That looks to be the easy part...

I like the all silver by the way
Thanks.

Man that's some tight working in there! Just got done reading the same pages. Local mechanic is helping me out with the manual.

One other issue is the fairings, AF fairing are held in with bolt and lock nut. There has to be a faster + better way to disassemble. Quick releases or the plastic interior holder things.

It's getting late, sorry for the rambling

Bikes owned:
2003 GSXr 750 -sold
2001 TL1000r -sold
2000 RC51 - sold

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post #10 of 20 (permalink) Old 03-13-2012, 08:52 PM
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Thanks.

Man that's some tight working in there! Just got done reading the same pages. Local mechanic is helping me out with the manual.

One other issue is the fairings, AF fairing are held in with bolt and lock nut. There has to be a faster + better way to disassemble. Quick releases or the plastic interior holder things.

It's getting late, sorry for the rambling
Ha...you gotta figure these are built by Japanese. Small and impossible work angles are what they do!

Fairing are a bit time consuming to pull. I don't trust the quick release fasteners....



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