KZR's Bikes of the Month for 2024

KZ440 speedometer

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08 Jun 2023 13:22 - 08 Jun 2023 16:31 #885783 by Yoshi
KZ440 speedometer was created by Yoshi
Does anyone know the ratio for the stock speedometer on a 1981 KZ440 LTD? Bought a bike and they changed the gauges. Speedo is not even close to accurate after 50 kph. The tach is also very bouncy and probably not functioning properly either.
Last edit: 08 Jun 2023 16:31 by Yoshi.

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08 Jun 2023 20:43 #885799 by Nerdy
Replied by Nerdy on topic KZ440 speedometer
This is an old thread but it might help: www.kzrider.com/forum/2-engine/599917-84-kz440-speedo-ratio
 
1979 KZ400 Gifted to a couple of nephews
1967 Yamaha YCS1 Bonanza
1980 KZ440B
1981 Yamaha XT250H
1981 KZ440 LTD project bike
1981 GPz550
2013 Yamaha FZ6R
The following user(s) said Thank You: Yoshi

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11 Jun 2023 06:53 - 11 Jun 2023 06:55 #885866 by martin_csr
Replied by martin_csr on topic KZ440 speedometer
US speedometers have 2240 revs = 1 mile stamped on the back. Some (all?) metric speedos are stamped 1400 revs = 1 km.  But they spin at the same rate. 1 mile = 1.6 km, so the metric speedo spins 2240 revs per 1.6 km.
 
1981 KZ650 Competition Sports and Road
Last edit: 11 Jun 2023 06:55 by martin_csr.
The following user(s) said Thank You: Yoshi

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