Originally Posted by GoodTill
If you have an electric tach and it stops working, check your fuses first!!!
My tach on my PD just decided to stop working. After I ripped the dash apart and found nothing, I whipped out my trusty Simpson meter and found no voltage at the tach. Bike still ran so the coil and ignition was getting juice.
Replaced the second fuse, the 7.5 amp one and bingo, tach all better.
cool! - but that always begs the question to me of why it blew in the first place