I recently installed the HD oil temp gauge in place of the air pressure gauge. Took the bike on a 400 mile trip with some stop and go traffic. the gauge never registered higher then just below the 110 mark. When I insatlled the gauge and turned the swith to ignition to check for working, it jumped to just below the 100 mark. that indicated the switch was working. During the long ride though, the needle never went past that mark. I installed exactly to the instructions. Relatively easy install. Could I have done something wrong? or could it be a bad unit? Any help would be appreciated.