Author Topic: Adjusting Mileage on Gauges?  (Read 1238 times)

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Offline Chris Elliott

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Adjusting Mileage on Gauges?
« on: September 08, 2009, 03:49:26 AM »
I am replacing the gauges on my bike and I was wondering if theres an easy way to change the mileage.. I would like to set my replacement gauges to the same mileage as my old ones. 

Offline KB02

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Re: Adjusting Mileage on Gauges?
« Reply #1 on: September 08, 2009, 05:08:59 AM »
Easy? No. But there's a reason for that. It can be done, though. Ask a car thief.  ::) ;D

I did it on my project bike, but I am using the whole front end from a different kind of bike, so my experience may or maynot help you.
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Offline Alan F.

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Re: Adjusting Mileage on Gauges?
« Reply #2 on: September 08, 2009, 06:26:15 AM »
Just chuck the speedo cable in a drill, lock the trigger on and check it every hour or so until it's correct.

Offline Chris Elliott

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Re: Adjusting Mileage on Gauges?
« Reply #3 on: September 08, 2009, 02:40:57 PM »
that would work if the mileage was less than actual mileage, but unfortunately the new gauges have more miles than the bike

Offline bikebitzofvt

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Re: Adjusting Mileage on Gauges?
« Reply #4 on: September 08, 2009, 02:45:01 PM »
that would work if the mileage was less than actual mileage, but unfortunately the new gauges have more miles than the bike
So let it run 'til the odometer flips over...
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Re: Adjusting Mileage on Gauges?
« Reply #5 on: September 08, 2009, 02:55:58 PM »
Used the drill chuck method to see if an old speedo worked.  Only got up to about 30 mph.  Even at 100 mph it takes quite a while to change it by a few thousand miles.

If you have too many miles just run the drill in reverse (or the opposite direction of what it normally turns).

Offline wannabridin

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Re: Adjusting Mileage on Gauges?
« Reply #6 on: September 08, 2009, 02:57:23 PM »
Just chuck the speedo cable in a drill, lock the trigger on and check it every hour or so until it's correct.

X2

i've done this before on an old car speedo, it worked, it just took awhile, because i didn't want to spin the cable TOO fast, and cause any problems!  just don't pull Cam from ferris beuller!!!

Used the drill chuck method to see if an old speedo worked.  Only got up to about 30 mph.  Even at 100 mph it takes quite a while to change it by a few thousand miles.

If you have too many miles just run the drill in reverse (or the opposite direction of what it normally turns).


i don't know about reverse, the only way to check it is to give it a try!  i'm showing almost 40k on my gauges, and after i do the rebuild, i think i'll keep it at the same mileage, it should be good for a few "wows!"
1976 CB750K, currently under construction:
http://forums.sohc4.net/index.php?topic=64468.0

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Offline Duke McDukiedook

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Re: Adjusting Mileage on Gauges?
« Reply #7 on: September 08, 2009, 03:00:13 PM »
Yeah, Ferris Bueller technique, dad won't even know.
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Offline Don R

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Re: Adjusting Mileage on Gauges?
« Reply #8 on: September 08, 2009, 08:56:00 PM »
I have heard going in reverse will screw them up.
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Offline Raul CB750K1

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Re: Adjusting Mileage on Gauges?
« Reply #9 on: September 10, 2009, 04:26:20 AM »
The search button is your friend....


http://forums.sohc4.net/index.php?topic=18160.0