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GPz900A1 tacho/voltmeter

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RBY
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GPz900A1 tacho/voltmeter

#1 PostAuthor: RBY » Thu Oct 30, 2014 1:25 am

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.
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Is Vic There
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#2 PostAuthor: Is Vic There » Thu Oct 30, 2014 5:23 am

It might be a bad earth or dodgy button.
Can't really help as electric is witchcraft :lol:
Z1000R ELR, Z1100R ELR, GPz900R A1, GPz750 Turbo, Norton F1, Harris Mag 2, Harris Mag 5, Yamaha YZR750SP, Triumph Steve McQueen, Suzuki RGV250 Sheene Rep, Suzuki RG500 Walter Wolf, Suzuki RG250 Walter Wolf, Aprilia RS250, Yamaha YL1, RG500. H**** NS400.
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z1bman
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#3 PostAuthor: z1bman » Thu Oct 30, 2014 9:11 am

it will be a build up of corrosion on the contact plate
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Rhencullen
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#4 PostAuthor: Rhencullen » Thu Oct 30, 2014 10:05 am

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.
1984 GPZ900R A1

2002 ZRX1200S

1981 Suzuki GS1000G + 1977 GT750B
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