Bouncy speedo

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01 Sep 2016 08:47 - 01 Sep 2016 08:53 #740777 by MDZ1rider
Replied by MDZ1rider on topic Bouncy speedo
I can only speak on the earlier models, but the speedo has a liquid filled coupling inside. A bouncing needle is a symptom that it is losing fluid. Unfortunately the coupling can not be refilled. Replacement is the only option and the coupling it is not sold as a separate item . Contact Bob at Z-resto[ www.zresto.com/ ]. He'll know what your options are.
Last edit: 01 Sep 2016 08:53 by MDZ1rider.
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01 Sep 2016 09:37 #740780 by DGA
Replied by DGA on topic Bouncy speedo
Ahh, there's the info I was looking for, thank you. So it's likely not repairable, well easy to fix without new parts, parts that are not listed for sale. Guessing the fluid coupling is the same for different models so it's possible to use one out of another speedo I bet.
"83 KZ1100 Spectre, '81 Yamaha XV750 Cafe, '74 Kawasaki H2B 750

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01 Sep 2016 13:12 #740796 by SWest
Replied by SWest on topic Bouncy speedo
There is no fluid in the Z1/KZ tach or speedo.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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02 Sep 2016 08:47 - 02 Sep 2016 08:48 #740906 by MDZ1rider
Replied by MDZ1rider on topic Bouncy speedo
Well then I guess the guy who's restored hundreds of Z1 speedo's and tachs as a business doesn't know what he's talking about either. See the section on the oil filled damper at the bottom of this link.
www.zresto.com/page2.php
Last edit: 02 Sep 2016 08:48 by MDZ1rider.

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02 Sep 2016 15:43 #740943 by missionkz
Replied by missionkz on topic Bouncy speedo
None of any KZ 1000 instruments I have, or have opened up, have that fat oil filled chamber.
Bruce
1977 KZ1000A1
2016 Triumph T120 Bonneville
Far North East Metro Denver Colorado

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02 Sep 2016 18:58 - 02 Sep 2016 18:58 #740957 by 650ed
Replied by 650ed on topic Bouncy speedo

MDZ1rider wrote: I can only speak on the earlier models, but the speedo has a liquid filled coupling inside. A bouncing needle is a symptom that it is losing fluid. Unfortunately the coupling can not be refilled. Replacement is the only option and the coupling it is not sold as a separate item . Contact Bob at Z-resto[ www.zresto.com/ ]. He'll know what your options are.


Actually, the fluid can be replaced. Here's the speedometer / tachometer place that does it:

www.z-clocks.co.uk

Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
Last edit: 02 Sep 2016 18:58 by 650ed.

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03 Sep 2016 06:10 #740973 by SWest
Replied by SWest on topic Bouncy speedo
Well lets see. I have two junk dampeners. One tach and one speedo at home. I'll compare and cut them open this afternoon when I get there. The reason I said they're solid is the shafts don't turn but I'd like to put this to bed either way. I'll make a clip of it.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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03 Sep 2016 09:13 - 03 Sep 2016 09:14 #740982 by missionkz
Replied by missionkz on topic Bouncy speedo
You have to break off the two frame tabs holding the axle shaft of the OD drum. Doesn't look like any good way to fix the frame after doing that.
Mine look smaller in diameter and solid, plus not large enough to hold any dampening liquid.
Bruce
1977 KZ1000A1
2016 Triumph T120 Bonneville
Far North East Metro Denver Colorado
Last edit: 03 Sep 2016 09:14 by missionkz.

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03 Sep 2016 09:22 #740984 by SWest
Replied by SWest on topic Bouncy speedo
I'm sure they're solid. I bent the tabs enough to get them apart then bent them back. Used a punch to tighten them.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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05 Sep 2016 19:13 #741243 by SWest
Replied by SWest on topic Bouncy speedo
Got to the gauge innards. No oil in the drum.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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05 Sep 2016 23:23 #741249 by missionkz
Replied by missionkz on topic Bouncy speedo
hmmmm, I think If that tube, which you snipped in half, was filled with a fluid, I think it would act as some kind of inertial damper.
Bruce
1977 KZ1000A1
2016 Triumph T120 Bonneville
Far North East Metro Denver Colorado

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06 Sep 2016 08:11 #741273 by SWest
Replied by SWest on topic Bouncy speedo
No oil or even a trace of it anywhere.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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