Re: Mechanical speedometer
I got one of these, off flea-bay. Was billed as 'vintage' so I thought I was scoring an older model...oh well...very disappointing. But the cheapie electronic I had was useless when motor was running.
It is a plastic cheapie, reset knob on side. I took it apart checked for burrs or irregularities on the gears (only one small casting flaw I exacto'ed off) and lubed gear teeth and cable with lithium and bearings with graphite. I think it reads a little fast. About 200 miles, still ok so far, but we should not have to disassemble new products and do pre-emptive work to prevent failure!