KZR's Bikes of the Month for 2024

Front Sprocket rotational play?

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16 Sep 2024 17:10 #904367 by aka Nasa
Front Sprocket rotational play? was created by aka Nasa
Hi all.  New guy here.  Bike is a 1980 KZ650.  I bought new chain and sprockets and while mounting the front sprocket, noticed that while in gear, it would ROTATE clockwise and counterclockwise (back and forth rotationally) about the equivalent of 1 full notch (tooth to tooth).  That equates to about 22 degrees free play.  I couldn't find a spec on that anywhere.  Is that normal or should it be much tighter?  Its the same movement in all 5 gears.  

I'm kind'a new to bikes.  Help greatly appreciated.  Yes, I searched to forums. Nothing came up. Hope i was entering the right terminology.  

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17 Sep 2024 16:16 #904395 by Nessism

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17 Sep 2024 23:46 - 17 Sep 2024 23:49 #904417 by zed1015
Replied by zed1015 on topic Front Sprocket rotational play?
If you mean that the output shaft has some rotational movement within the gearbox when in gear and not the actual sprocket on the shaft then YES! that is normal and due to accumulative backlash throughout the gears and primary drive.

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Last edit: 17 Sep 2024 23:49 by zed1015.
The following user(s) said Thank You: Warren3200gt

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18 Sep 2024 01:55 #904419 by Wookie58
Replied by Wookie58 on topic Front Sprocket rotational play?
Please try and keep to one thread per topic, guys will get frustrated with multiple threads (you have responses on both)

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  • SWest
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  • Sustaining Member
  • 10 22 2014
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18 Sep 2024 14:25 #904433 by SWest

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