About %30 of the time when i press my rear shock button. It reads zero, when i press the "M" button to fill it up to about 50, it goes up to 50 really fast on the computer, but not in the shock itself. It does it alot more frequently in the cold. What does this? also after pressing the M and it "fills" when i press the rear button again it says 15 and does it over.... i have an 85 venture royale... anyone know what to do?