I have a PC installed on my 2010 Road Glide, which was installed by a local shop. After installation I have had problems with the Tach not moving past 5,000 RPM. When the bike is on the Dyno it revs to 6,200 RPM as it is suppose to, per the shop it is the Tach that is the problem. As the bike is under warranty, I went to my local HD dealer and they state that it revs to 6,200 RPM when the PC is unplugged. I have put in a tech support request with Dyno Jet (PC), but am curious if anyone else has had this issue or knows what the fix is. The dealer charged me $80 to take a look. I just really don't want to go back and forth from the dealer to the shop over my tach. Do I need the tach, no, but I like it to work...any advice would be greatly appreciated.