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Speedo stopped working

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Wayne1960
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Speedo stopped working

#1 PostAuthor: Wayne1960 » Tue Jun 07, 2016 9:58 am

Any ideas? My speedo has stopped working. Disconnected it and put a drill on end of cable and the needle registers so it's not the actual speedometer or cable.
Put it back together and made sure it engaged on the pin in the front wheel unit but nothing.
Just purchased a 1976 UK Z900 A4 for renovation. Wish me luck.
Bike now finished what a joy!

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z1bman
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#2 PostAuthor: z1bman » Tue Jun 07, 2016 10:51 am

turn the cam in the speedo drive & check if the worm gear is turning? if its not the gear has worn & you will need to replace the complete speedo drive



http://www.ebay.co.uk/itm/Kawasaki-Z900 ... SwdWBXOerv

Wayne1960
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#3 PostAuthor: Wayne1960 » Wed Jun 08, 2016 10:52 pm

Ok i have removed the wheel and the speedo drive and clearly something isn't working as it should.
if i turn the cam the worm gear turns but intermittently.
i would really like to keep the init as its original so can i strip it down and if so how?
Just purchased a 1976 UK Z900 A4 for renovation. Wish me luck.

Bike now finished what a joy!

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z1bman
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#4 PostAuthor: z1bman » Wed Jun 08, 2016 11:49 pm

yes you can get the worm gear but its nearly impossible to remove the the roll pin that secures it in the aluminium casing cheaper & more easily available to replace as a complete unit

Wayne1960
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#5 PostAuthor: Wayne1960 » Thu Jun 09, 2016 7:19 am

Ok that's what that is!! I thought it was an Allen screw. So could I drill it out?
Just purchased a 1976 UK Z900 A4 for renovation. Wish me luck.

Bike now finished what a joy!

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z1bman
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#6 PostAuthor: z1bman » Thu Jun 09, 2016 7:42 am

the pin itself is hardened you would need to drill from the opposite end of the dowel & tap it through & that's if you can get another worm gear. it realy isnt worth the aggro trying to repair


http://www.ebay.com/itm/NOS-OEM-Kawasak ... Cw&vxp=mtr

Wayne1960
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#7 PostAuthor: Wayne1960 » Thu Jun 09, 2016 11:15 am

Ok speedo drive aside should there be any play in the part that fits into the wheel behind the chrome dust cover. Nice by a couple of mm or should it be solid?
Just purchased a 1976 UK Z900 A4 for renovation. Wish me luck.

Bike now finished what a joy!

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z1bman
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#8 PostAuthor: z1bman » Thu Jun 09, 2016 2:31 pm

yes you will have play between the pick up & the speedo gear box

Wayne1960
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#9 PostAuthor: Wayne1960 » Thu Jun 09, 2016 4:33 pm

is there a way to get the black dust seal out without damaging it?
Just purchased a 1976 UK Z900 A4 for renovation. Wish me luck.

Bike now finished what a joy!

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#10 PostAuthor: z1bman » Thu Jun 09, 2016 4:42 pm

hook it from behind & pull it out


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