Author Topic: How Much Freeplay is Acceptable  (Read 4688 times)

Offline ttown95LT

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How Much Freeplay is Acceptable
« on: September 08, 2012, 08:10:03 PM »
I have been noticing a clunking sound in the drivetrain lately, only after shutdown and backing it into the garage, bike in gear and clutch actuated.  So today I had it up on the center stand and with it in 1st gear I can move the wheel approx. 2 inches of total freeplay.  Is this acceptable?  The bike is coming up on the 50k mark.
95 K1100LT current
05 VStrom650 sold
86 Nighthawk450 sold
76 CB400F sold

Offline Inge K.

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Re: How Much Freeplay is Acceptable
« Reply #1 on: September 08, 2012, 08:30:10 PM »
Here is what others have measured.
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Offline ttown95LT

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Re: How Much Freeplay is Acceptable
« Reply #2 on: September 10, 2012, 07:20:09 AM »
Thanks Inge. That's what I figured, I've got a couple of weeks off soon and will be tearing into the drivetrain, to perform Dr. Ducks splinetology. The previous owner made no mention of having done it, and I went to the shop where he had his last service done and asked them if they normally perform spline lube at any service intervals and they said that was considered an extra service that had to be requested, so that means mine has probably never been lubed since the factory.
95 K1100LT current
05 VStrom650 sold
86 Nighthawk450 sold
76 CB400F sold

Offline mac

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Re: How Much Freeplay is Acceptable
« Reply #3 on: September 10, 2012, 10:52:05 AM »
The referenced thread has one real data point (6cm) and one that sounds to me from context like a WAG (12cm).
Maybe we motobrickers could get a better response rate? I'll measure mine tonight and report back. I'm interested.
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'86 K75T

Offline kennybobby

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i measured 2" on mine also
« Reply #4 on: September 10, 2012, 10:23:27 PM »
1st gear on center stand.  28k on one, 120k on the other.

i think it's normal--basically the stackup of all the backlash in all the gears--final drive, ring and pinion plus transmission 1st gear inputshaft / layshaft / output shaft.
Ridin' 87 K75S vin 1334,
Renchin' 86 75S vin 0061

Offline frankenduck

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Re: How Much Freeplay is Acceptable
« Reply #5 on: September 10, 2012, 10:33:26 PM »
There's some freeplay in the transmission. Nothing to worry about.
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Offline mac

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Re: How Much Freeplay is Acceptable
« Reply #6 on: September 10, 2012, 10:39:34 PM »
3-4 inches at the wheel in 1st gear on my ~19k mi K75
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'86 K75T

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