Join Date: Feb 2012
Location: Albuquerque, NM, USA
Re: Tachometer Reads Low ?
Of course you know there's no mechanical connection between your driveline and the tachometer--it's electronic. So only problem is likely internal friction in the tach's gears, needle shaft, etc., as electronic failure is likely all or nothing. How does it perform at idle? Does it appear to respond correctly when blipping throttle in neutral? Can you hook up another tach (e.g. on a timing light) to compare the two? I'd call one of the usual instrument repair places, North Hollywood Speedometer, etc., and discuss.
'12 R1200RT, '02 R1100S, '84 R80G/S