Originally Posted by thatsmrmastercraft
Leave the key on for 12.5 days?? We are really full of help, huh
Agreed with calling the dealer.
Actually, I did that when I changed my tachometer a few years ago. I just hooked the tack to a power supply sat it in the corner of my desk and waited 20 days, 4 hours and 15 minutes until it matched the hour meter it replaced.