Interstate Tach Problem

[odinsvalk]

Hit the kill switch while my RPMs were up the other day and I watched the tach needle fall like a rock. Next thing I know the needle's pointing almost straight down (6:00-ish). When I start the bike the needle rotates clockwise and pegs on the wrong side of the zero pin. I swear it looks like the tach needle jumped the pin when I shut 'er down!! Are the I/S tachs sealed units or can I pop off the glass and lift the needle back over the pin where it oughta be?
Didn't realize how much I use my tach 'till it wasn't working.
Any help would be appreciated.

Thanks,
Dave

[PAValk]

It appears that you can get in there but it doesn't look like fun .

[odinsvalk]

Thanks PAValk for the exploded diagram. Once I got the inside fairing side panels off I had good access to the 4 bolts and collars that hold the instrument cluster in place. The worst part was figuring out how to disconnect the mondo electrical connector off the back. Mine's a '99 too so after 8 years the plastic was real brittle. Once the cluster was loose it was just 8 more screws from the back and I could lift the needle back over the pin.
Tomorrow I'll put it back together ans see if it works.

Thanks again,
Dave