When trying to diagnose a check engine light and occasional stalling I noticed my Speedometer moves a little (about to 5 mph) when revving in neutral ... Wondering if this is a spore sensor issue or could have something to do with my cel ?
Thanks for any help

 

Sounds like a grounding issue. Check your grounding leads for any loose or corroded connections.

 

It would help to tell us what model year your bike is. Earlier bikes had a cable drive speedo, later ones are electronic. As Crashone suggests, start by checking the electrical connections, if you have an electronic speedo.

 

Think it's fixed ! Dang loose grounds ! Thanks all for responses

 

Well done and thanks for the follow up. We can sleep easy now!

 

Hey Im having problems with this as well. Which ground did you address? The battery or..

 

The battery positive was loose , but I went through and sprayed electrical cleaner on both +&- terminals , disconnected any wiring plugs , relays etc and cleaned them , then dielectric grease and tightened everything up .. Only took about 20-30 minutes