Speedometer, no work

[FC guy]

I bought an 89 240sx about 2 weeks ago and in the process of making it all functional again. My problem is the speedometer doesnt work, as the car runs the speedometer will slowly move up in speed and its in nuetral anybody have a problem like this with theirs any sugestions would help. thanks

[sdtouge]

join the club...

most 240s with the h.u.d. are the same way...