Author Topic: Speedometer jumping? (Read 2516 times)

Pillage · « **on:** July 15, 2007, 08:02:56 PM »

I have a 97 B12, recently on the highway the speedometer jumps from 70 MPH to 85. Does anyone have any idea what could cause this?

skyrider · « **Reply #1 on:** July 16, 2007, 02:09:06 AM »

Your wrist?! Someone was gonna say it, it might as well have been me.

On my DR 650, I had taken the bars off to check the torque on the "big nut". Apparantly when I put it all back together, I did something slightly wrong because when I would turn the bars, the engine would rev up. Talk about an eye opener! Point being, have you recently did some maintenance that may have caused this?

Pillage · « **Reply #2 on:** July 16, 2007, 08:35:53 AM »

Ha ha, no I don't think it's my wrist or recent maintenance.
It's like the speedo get's stuck at 70 and if I get the bike up to 85 the speedo jumps to 85. If I gradually slow down I still can't get it to indicate a steady 80 MPH. I remember having similar problems with the speedo on my 81 GS1000, but I don't think I ever fixed it as that bike had many more important problems than that.

Red01 · « **Reply #3 on:** July 16, 2007, 09:37:14 AM »

Sounds like it's time to lube the speedo cable.

pmackie · « **Reply #4 on:** July 16, 2007, 12:52:02 PM »

It may be past the point of lube...

1. Lube the cable first
2. Plan to replace the cable when the lube doesn't work.

Pillage · « **Reply #5 on:** July 17, 2007, 07:20:34 AM »

Thanks guys I'll give it a shot.