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Author Topic: How loose is your rear sprocket??  (Read 1374 times)

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Offline mattcb350f

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How loose is your rear sprocket??
« on: April 09, 2008, 03:24:34 PM »
The rear sprocket on my lil' 350F is a little loose on the hub. It seems that the sprockets (studs or dowels?) are loose inside the rubber bushings in the hub.

It's not very loose, maybe 2-3mm or play at the teeth side to side. I drove it before I took it apart for the resto and it seemed fine.

My question, is there always a little play here, do your sprockets wiggle a little or are my bushings worn out.

 Cheers, Matt.
« Last Edit: April 10, 2008, 09:31:35 AM by mattcb350f »
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1974 CB350F,  1980 CB125S,  1981 XL80S
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Offline seaweb11

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Re: How loose is your sprocket??
« Reply #1 on: April 09, 2008, 03:37:46 PM »
mine wiggle.
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Offline hoodellyhoo

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Re: How loose is your sprocket??
« Reply #2 on: April 09, 2008, 05:45:04 PM »
same here
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Offline Terry in Australia

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Re: How loose is your sprocket??
« Reply #3 on: April 09, 2008, 05:51:00 PM »
Mine wiggle when I run. ;D
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Offline mattcb350f

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Re: How loose is your sprocket??
« Reply #4 on: April 09, 2008, 06:32:51 PM »
Good enough for me, together she goes..  ;D

Thanks, Matt.
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1974 CB350F,  1980 CB125S,  1981 XL80S
Non Honda's: 86 & 87 Husqvarna 400wr's

My CB350F resto: http://forums.sohc4.net/index.php?topic=30467.0
Gallery at:
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Offline seaweb11

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Re: How loose is your sprocket??
« Reply #5 on: April 09, 2008, 06:40:53 PM »
"The rear sprocket" ...............Wait, I recant my above post........ "really" .........I thought you said front sprocket :o


My rear is not loose...........and I mean that in any way you wish to describe it ::)
jokes will not be taken lightly.
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Offline mattcb350f

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Re: How loose is your sprocket??
« Reply #6 on: April 09, 2008, 06:50:11 PM »
Quote from: seaweb11 on April 09, 2008, 06:40:53 PM
"The rear sprocket" ...............Wait, I recant my above post........ "really" .........I thought you said front sprocket :o

Nope, the rear.... and I've seen a few other bikes that are loose. Just wondering what's worn or is a little looseness alright

 Matt.
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1974 CB350F,  1980 CB125S,  1981 XL80S
Non Honda's: 86 & 87 Husqvarna 400wr's

My CB350F resto: http://forums.sohc4.net/index.php?topic=30467.0
Gallery at:
http://gallery.sohc4.net/main.php?g2_itemId=298318

Offline kayaker43

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Re: How loose is your sprocket??
« Reply #7 on: April 09, 2008, 07:46:32 PM »
Big squishy rubber things inside the hub make up what they call the "cush" drive. It minimizes shock loading on the gearbox. When new they are pretty snug but most will loosen up.

Slop is not ideal, but is totally harmless.
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Offline 333

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Re: How loose is your sprocket??
« Reply #8 on: April 09, 2008, 07:56:24 PM »
At 25K, mine are pretty snug.  While the idea is to "cush"ion the acceleration, there shouldn't be any play when moved by hand.
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Offline tsflstb

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Re: How loose is your sprocket??
« Reply #9 on: April 09, 2008, 09:28:20 PM »
I don't know what the service limit is on those cush drive rubbers, but if you choose to remove them...good luck is all I can say.  I have blocked out that week of my life from memory.

http://forums.sohc4.net/index.php?topic=27968.0

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Offline mattcb350f

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Re: How loose is your sprocket??
« Reply #10 on: April 10, 2008, 09:32:43 AM »
Quote from: tsflstb on April 09, 2008, 09:28:20 PM
I don't know what the service limit is on those cush drive rubbers, but if you choose to remove them...good luck is all I can say.  I have blocked out that week of my life from memory.

http://forums.sohc4.net/index.php?topic=27968.0



Good lord man!!  :o

Mine are tight enough  ::)

 Matt.
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1974 CB350F,  1980 CB125S,  1981 XL80S
Non Honda's: 86 & 87 Husqvarna 400wr's

My CB350F resto: http://forums.sohc4.net/index.php?topic=30467.0
Gallery at:
http://gallery.sohc4.net/main.php?g2_itemId=298318
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