When you prick the instrument apart you will not want to open it every year or two...
This morning I just reinstalled my stripped down speedo and tacho. I bought a spare set for one dollar and removed the cases and take them to the painter.
When I was going to reinstall everything this morning- guess what. The covers were of different height. Murphy's law - things that should be compatible won't.
Furthermore, the spare set has translucent dials, while my original set (CB350Twin) has opaque dials. Fortunately, both in perfect shape....
... but I couldn't remove the reset knob. Tried hard and gently -I knew it unscrew clockwise- but couln't help to scratch the dial a little as I had to remove the back in order to get a grasp of the axle with pliers, and trerefore the instrument was loose inside the cover with only the knob preventing it to get out. What a #$%*!!!
So now I have a set of heavily-faded instruments with perfectly-painted cases, and my original set with crappy cases and slightly-scratched dial in one of them. So another delay taking the cases to the painter again, and will look for a green pen trying to hide the scratches.
As I was at it I just resetted the odometer to 99999.0 km. I'm one of those who think that the bike should keep the original mileage, but as I have completely dismantled everything, every single metal part has been either painted, cleaned or replaced, and the engine has new pistons, rings, timing chain, tensioner etc, I think it's more than fair to put the odometer to 0 and assume the bike will start a new life again -if I finally put everything together...-
Raul