Speedo reads double.

[lh25]

hi have just replaced my speedo drive unit and now it reads twice the speed im actually doing i was following a car at 39mph mine was saying 80mph any ideas how this is happening or a fix for this please
cheers

[andrewsmith]

is it a pointy or curvy?

I would check the connections are in properly and ok
after that I have to say get it checked or use a speedo healer

[lh25]

its a curvy y reg

[danf1234]

That means a curvy can do 200mph - Anyone wanna but a pointy!

[andrewsmith]

Check the connections first

You completely remove the old drive? sounds like a daft question but a double the speed (actual vs indicated) reading would indicate that the sensor is getting double the amount of pulses it should be

[hongman]

I thought this was something to do with the magnets, vaguely remembering other threads on identical issue.

[yorkie_chris]

You used wrong rotor... change it for one from an >04 bike... K5> has 8 pulses per rev instead of 4.

[lh25]

oh right cheers well would it work if i used the matching pick up as i have it ???

[fastdruid]

No.

Druid

[Owenski]

What you should defo do, is strap a camera to your bike where the speed is shown in shot, ride on a road with 40mph limit doing an indicated 80mph then post the vid on you tube. Could be amusing.

[kerby]

You used wrong rotor... change it for one from an >04 bike... K5> has 8 pulses per rev instead of 4.

What you should defo do, is strap a camera to your bike where the speed is shown in shot, ride on a road with 40mph limit doing an indicated 80mph then post the vid on you tube. Could be amusing.

:thumright:

[yorkie_chris]

No.

Druid

+1

Will not work, sensor is same.

[hongman]

The miles racked up on the odo will go on twice as fast too won't it?

[yorkie_chris]

Yes

[Typhoon]

Look on the bright side... means you'll be able to do about 300 miles to a tank ;-)

[Owenski]

and you'll have the only busa beating SV out there.