Eratic speedo - SV650.org

15-10-11, 05:20 PM

The speedo on the sv keeps jumping up and down from 60 to 40 and back up again etc no noticable loss of power and battery connections appear fine any ideasss? Cheers

Jayneflakes · 15-10-11, 05:27 PM

Curvey or Pointy?

My pointy has a magnet that sits in the front wheel, if the tabs break off of this, it gives false readings.

andrewsmith · 15-10-11, 05:27 PM

It sound like the speedo drive is fubar'd.

Do the speedo drive test in the haynes and the workshop manual.

15-10-11, 05:29 PM

sorry should have said its a curvy 2000 hope its not expensive ha will try the drive test as long as its easy enough

15-10-11, 05:39 PM

Broken speedo drive

15-10-11, 05:46 PM

Whats the magnet thing look like?

rictus01 · 15-10-11, 06:05 PM

have a look on this site, type in the search part number 34983-21E00, just over £21, the magnet is cylindrical with four tabs and located on the lefthand side of the front wheel within the housing on the axle.

although this is likely to be the cause, it's worth checking the main electrical plug, this can be found behind the headstock, lift the tank, remove the airbox and right at the front you'll find two multi plugs, one green and the other clear/white; the clear/white three wire one is the one to check as the pins can require a clean if water ingress has occurred.

Cheers Mark.

15-10-11, 06:11 PM

Cheers Mark will have a look tomorrow when it is a bit lighter. Hope it is the connetion cheaper and easier but suppose £21 isnt that bad thanks Ryan

15-10-11, 07:09 PM

The curvy uses a magnet as well does it?

mike636 · 15-10-11, 08:21 PM

As Ralph says, broken speedo drive. take the front wheel of and look at the drive, you will probably see the 4 tabs on the drive snapped off. there £2-£3 from main dealer.. takes literlly seconds to swap then just be carful when putting the frot wheel back on that you dont catch the 4 tabs.HTH

15-10-11, 05:20 PM	#1
ryansv Guest Posts: n/a	Eratic speedo The speedo on the sv keeps jumping up and down from 60 to 40 and back up again etc no noticable loss of power and battery connections appear fine any ideasss? Cheers

15-10-11, 05:27 PM	#3
andrewsmith Member Mega Poster Join Date: Apr 2010 Location: Newcastle upon Tyne, Just south of salad dodging country Posts: 7,750	Re: Eratic speedo It sound like the speedo drive is fubar'd. Do the speedo drive test in the haynes and the workshop manual. __________________ RIP Reeder 20/07/1988 - 21/03/2012. Always missed squire!!! Every year we meet old friends, gain some new ones, lose old ones and you always remember them all. “Live as if you were to die tomorrow. Learn as if you were to live forever.” Mahatma Gandhi

15-10-11, 05:29 PM	#4
ryansv Guest Posts: n/a	Re: Eratic speedo sorry should have said its a curvy 2000 hope its not expensive ha will try the drive test as long as its easy enough

15-10-11, 05:39 PM	#5
-Ralph- Guest Posts: n/a	Re: Eratic speedo Broken speedo drive

15-10-11, 05:46 PM	#6
ryansv Guest Posts: n/a	Re: Eratic speedo Whats the magnet thing look like?

15-10-11, 06:05 PM	#7
rictus01 Member Mega Poster Join Date: Jul 2003 Location: South London Posts: 9,799	Re: Eratic speedo have a look on this site, type in the search part number 34983-21E00, just over £21, the magnet is cylindrical with four tabs and located on the lefthand side of the front wheel within the housing on the axle. although this is likely to be the cause, it's worth checking the main electrical plug, this can be found behind the headstock, lift the tank, remove the airbox and right at the front you'll find two multi plugs, one green and the other clear/white; the clear/white three wire one is the one to check as the pins can require a clean if water ingress has occurred. Cheers Mark. __________________ Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming, 'Wow! What a Ride!

15-10-11, 06:11 PM	#8
ryansv Guest Posts: n/a	Re: Eratic speedo Cheers Mark will have a look tomorrow when it is a bit lighter. Hope it is the connetion cheaper and easier but suppose £21 isnt that bad thanks Ryan

15-10-11, 07:09 PM	#9
-Ralph- Guest Posts: n/a	Re: Eratic speedo The curvy uses a magnet as well does it?

15-10-11, 08:21 PM	#10
mike636 Member Join Date: May 2011 Location: leicester Posts: 131	Re: Eratic speedo As Ralph says, broken speedo drive. take the front wheel of and look at the drive, you will probably see the 4 tabs on the drive snapped off. there £2-£3 from main dealer.. takes literlly seconds to swap then just be carful when putting the frot wheel back on that you dont catch the 4 tabs.HTH __________________ 2001 Triumph Daytona 955i. 2001 Kawasaki zx6r j2 race bike Racing:mikemace.co.uk

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