Tachometer/Rev Counter: Electronic or Mechanical?

Lost_Coast_Paso · **Posted:** Sun Sep 13, 2009 3:21 am

Greetings. The tach/rev counter on my '91 907 quit working. An earlier thread talked about a "Proximity Switch", part #55240051A, but my parts catalog shows a cable and "rev counter gears", part #066792160, which looks very much like the mechanical tachometer that has been on every bike I've owned, going back 30 years. Is the tach/rev counter an electronic device, a mechanical device, or a combination of the two?

Thanks,
Tim

paso750 · **Posted:** Sun Sep 13, 2009 7:36 am

it`s purely mechanical. The switch you`re referring to is part of the ignition system.

G.

persempre907 · **Posted:** Sun Sep 13, 2009 8:37 am

Have you tried to check the cable? They are prone to fail.
Ciao

93IE · **Posted:** Sun Sep 13, 2009 3:42 pm

Mine quit the week before last. The cable was broken about 1 inch below the tach fitting. I re-routed it as so not to have it bent where it connects to the tach.

Preston

Lost_Coast_Paso · **Posted:** Sun Sep 13, 2009 7:04 pm

Thanks, everyone. That's good news.

-Tim

Tachometer/Rev Counter: Electronic or Mechanical?

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