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Author Topic: CB500/4 Speedometer  (Read 4757 times)

Offline florence

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CB500/4 Speedometer
« on: July 03, 2019, 09:51:46 AM »
The odometer on my bike has stopped working.   The speed bit is OK but for some reason the miles don't change.  Is there an easy fix for this or will I need to look for a second hand unit?  (would have to be faded and battered not to stand out too much)

The base appears to be pressed together and not easy to undo.
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Offline kent400

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Re: CB500/4 Speedometer
« Reply #1 on: July 03, 2019, 10:13:45 AM »
Obviously the mileage counter drum is not being driven so it's likely one of the internal gears has stripped.  Repair is possible provided it's not the spiral gear on the drive end. Image will show the gear train to the counter drum. 
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Offline heliwilly

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Re: CB500/4 Speedometer
« Reply #2 on: July 03, 2019, 11:46:44 AM »
Florence,

I've got this one off a CB 550, approx 1974.

Bill W
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Offline Trigger

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Re: CB500/4 Speedometer
« Reply #3 on: July 03, 2019, 11:55:12 AM »
Different clock and size, will not fit a  CB500/4 bracket  ;) ;)
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Offline heliwilly

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Re: CB500/4 Speedometer
« Reply #4 on: July 03, 2019, 12:19:52 PM »
Cheers Trigger, I wasn't sure if it would fit as they are a similar machine.  Bill W.
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Offline Bryanj

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Re: CB500/4 Speedometer
« Reply #5 on: July 03, 2019, 03:37:07 PM »
Florence does the cable attachment come out of the back dead straight or at an angle?
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Offline florence

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Re: CB500/4 Speedometer
« Reply #6 on: July 03, 2019, 04:04:19 PM »
Bryan, it is straight.
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Offline Bryanj

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Re: CB500/4 Speedometer
« Reply #7 on: July 03, 2019, 05:55:56 PM »
Not sure if i have an available "spare" of that. I will have a look but cant for at least 2 weeks
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Offline florence

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Re: CB500/4 Speedometer
« Reply #8 on: July 03, 2019, 08:50:36 PM »
OK, thanks for looking and thanks for the offer Heliwilly but my clocks are smaller type.
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Offline matthewmosse

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Re: CB500/4 Speedometer
« Reply #9 on: July 03, 2019, 10:32:06 PM »
Cb250 superdream innards fit the same case and give correct speed.
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Got a 500/4 with rust and a sidecar and loadsa bits. nice and original and been round the clock

Offline florence

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Re: CB500/4 Speedometer
« Reply #10 on: July 04, 2019, 11:29:58 AM »
Useful to know, thanks Matthew
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Offline jon stead

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Re: CB500/4 Speedometer
« Reply #11 on: July 04, 2019, 07:15:01 PM »
I’ve got a speedo to sell if you’re interested. Cable attachment comes straight out of the back.

« Last Edit: July 04, 2019, 08:24:02 PM by jon stead »
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2015 Triumph Bonneville T100 Newchurch

Offline florence

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Re: CB500/4 Speedometer
« Reply #12 on: July 05, 2019, 09:40:08 AM »
Jon, how much would you like for them?
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Offline jon stead

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Re: CB500/4 Speedometer
« Reply #13 on: July 05, 2019, 05:31:23 PM »
Hi Florence, I’ve pm’d you
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2015 Triumph Bonneville T100 Newchurch
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