Author Topic: Drive Sprocket - how much movement?  (Read 583 times)

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Offline Bristledisk

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Drive Sprocket - how much movement?
« on: October 12, 2016, 08:05:43 PM »
I've installed a new 17T drive sprocket and facing plate on my cb400f. After installation, there is some side to side movement on the drive sprocket when I move it with my hand. Is this normal or should the driver sprocket have no movement? I would expect it to have no side to side movement. The shaft itself has no movement (except rotation of course) just the sprocket. Thanks in advance.
1977 CB400F, 1976 CB750F1, 1974 CB550K, 1975 CB550K, 1976 CB550K2, 1973 CB350F

Offline scottly

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Re: Drive Sprocket - how much movement?
« Reply #1 on: October 12, 2016, 08:31:18 PM »
The sprocket normally has a fair amount of movement.
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Offline Bristledisk

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Re: Drive Sprocket - how much movement?
« Reply #2 on: October 13, 2016, 10:57:09 AM »
Thanks Scottly. That puts my mind at rest.
1977 CB400F, 1976 CB750F1, 1974 CB550K, 1975 CB550K, 1976 CB550K2, 1973 CB350F

Offline 70CB750

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Re: Drive Sprocket - how much movement?
« Reply #3 on: October 13, 2016, 11:07:35 AM »
I actually had problems with sprocket held on tight.  The center bolt would be loose every time I checked.

I figured the sprocket movements on acceleration and deceleration (withing the splines play)  was loosening it up and after I added a washer that made the sprocket loose from side to side, the problem disappeared.
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Offline 754

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Re: Drive Sprocket - how much movement?
« Reply #4 on: October 13, 2016, 11:13:18 AM »
If it has the tab with two bolts..lots...scary lots.. If you never saw it before ..
 Back wheels with cush ..scary lots of back and forth..
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