Recently acquired a 2012 Ultra Lx. Everything is good, except the speedometer jumps all over the place - one second your doing 40 next it showing 6. I don't pay a lot attention to it - the tach reads steady - but still I would like it to function as designed (it bothers my wife and so it is an issue).

Never had a pwc before, is this speedo like a boats - got a paddle wheel somewhere or a water tube? Suggestions, please. I did find a GPS module from candoo that appears to be plug and play - reckon that would solve the problem?

Thanks in advance for your reply...