Twosheds
Junior member
- Location
- Surrey. England
I've got a replacement speedo for my '79 1200 series 1. I need to change the odometer reading back to the true milage for the bike. Can anyone tell me the best way to do it?
Change odometer reading
- Thread starter Twosheds
- Start date
phil37
Hero member
- Location
- Lincolnshire
Just leave it outside tonight as it's "Motor Traders Night" tonight - all the clocks will get wound back 
D
dja981
Guest
phil37 said:Just leave it outside tonight as it's "Motor Traders Night" tonight - all the clocks will get wound back
Love it
Dave
Dellortoman
Hero member
- Location
- Tasmania, Australia
It's easy enough to re-arrange the little number wheels if you don't mind taking the speedo apart. You can get new crimp rings from Marcel in Netherlands.
If you don't want to open it up, the only way to alter the odometer is by rotating the speedo cable, either backwards or forwards - works either way.
As Xav suggested, a drill will do the job. I dunno what direction you need to go so a reversing drill may be required. If you have many thousands of km to crank over, it may take quite a while. You'll be able to work out how many hours it'll take when you see what the indicated speed on the dial is when you're spinning it with the drill (time in hours = km/speed).
For example, if you need to crank over 20,000km and the drill spins the speedo up to 100kph *(see note below) it'll take 200 hours, or more than a week of continuous running. Make sure your drill is well lubricated and rated for continuous running!
* Note:
I tested a speedo (not Laverda) a while ago with an electric drill, and with the drill on high speed I think it only did about 80kph. Drills are geared down so the chuck rotates a lot slower than the armature.
You may be better off with some other type of electric motor that you can couple directly to the speedo. You can buy small DC (reversible) motors on ebay for peanuts. It'll run a lot quieter and cooler than a drill too, so won't keep the neighbours awake or burn down your shed.
Something like this: http://www.ebay.com.au/itm/Small-DC-Electric-Motor-3V-13000rpm-Models-Robotics-MTR2-/350613152546?pt=UK_BOI_Electrical_Components_Supplies_ET&hash=item51a22c2322
Cheers,
Cam
If you don't want to open it up, the only way to alter the odometer is by rotating the speedo cable, either backwards or forwards - works either way.
As Xav suggested, a drill will do the job. I dunno what direction you need to go so a reversing drill may be required. If you have many thousands of km to crank over, it may take quite a while. You'll be able to work out how many hours it'll take when you see what the indicated speed on the dial is when you're spinning it with the drill (time in hours = km/speed).
For example, if you need to crank over 20,000km and the drill spins the speedo up to 100kph *(see note below) it'll take 200 hours, or more than a week of continuous running. Make sure your drill is well lubricated and rated for continuous running!
* Note:
I tested a speedo (not Laverda) a while ago with an electric drill, and with the drill on high speed I think it only did about 80kph. Drills are geared down so the chuck rotates a lot slower than the armature.
You may be better off with some other type of electric motor that you can couple directly to the speedo. You can buy small DC (reversible) motors on ebay for peanuts. It'll run a lot quieter and cooler than a drill too, so won't keep the neighbours awake or burn down your shed.
Something like this: http://www.ebay.com.au/itm/Small-DC-Electric-Motor-3V-13000rpm-Models-Robotics-MTR2-/350613152546?pt=UK_BOI_Electrical_Components_Supplies_ET&hash=item51a22c2322
Cheers,
Cam