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GPz900A1 tacho/voltmeter
Posted: Thu Oct 30, 2014 1:25 am
Author: RBY
Thanks to Is Vic There and chrispydick, I got the carbs back in and all the diligent work on the jets has paid off. An oil and filter change, coolant change and she fired up first hit on the button - not too bad after sitting for more than 22 years (a sin I know but trying to redeem myself)! However the tacho/voltmeter isn't working, any pointers on this one would be greatly appreciated.
Posted: Thu Oct 30, 2014 5:23 am
Author: Is Vic There
It might be a bad earth or dodgy button.
Can't really help as electric is witchcraft
Posted: Thu Oct 30, 2014 9:11 am
Author: z1bman
it will be a build up of corrosion on the contact plate
Posted: Thu Oct 30, 2014 10:05 am
Author: Rhencullen
The tacho on a 900R is fed from a black wire that also provides power to the coils. It joins in the loom however and if the bike is running OK, this joint might be suspect.
Lots more info
here - well worth the £5 subscription to join the club and forum.