Shimming the Cush Drive - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 46 Old 07-30-2010, 08:18 PM Thread Starter
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Shimming the Cush Drive

So, let me start by saying that I stole this idea from a comment someone else made here recently,but wanted to post up something I tried that worked well for me.

At 15,000 miles, I had the same crappy low-RPM, low speed driveability that almost everyone complains about. The bike wasn't happy trolling along at 50-55 or so in 5th or 6th gear (even with a 1 tooth smaller front sprocket) unless the RPMs were in the sweet spot 4000 or above. I always had it in the back of my mind that even my temperamental, comparatively high strung RC51 putted along more smoothly than my Vee. I figured that there may be more to it than the lean spot, TB sync fixes that we have all tried and definitely help.

With the bike on the center stand, I could grab the rear chain/sprocket, and move it about 1/2" forward & back. Riding the bike, you can see how the power pulses from a v-twin at low revs and that slop could cause the sprocket to hammer back and forth against the rubber cushions.

What I did was to very simply pull the rear wheel, remove the sprocket/sprocket carrier, and cut rubber shims out of an old inner tube to place between the outside of each cushion and its pocket in the hub. 10 shims in all. Essentially, you are just squeezing the "c" shaped cushions closed a bit so that the sprocket carrier fits more snugly inside them.



The improvement is amazing. I'm not talking about chugging along like a cruiser at 1500 RPMs, but now on a smooth, flat stretch of road, I can click into 6th gear without the bike protesting.

Well worth the 30 minutes and $0 investment.

2012 Super Tenere
2006 CRF50 with big-boy mods. :biggrin:
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post #2 of 46 Old 07-30-2010, 08:32 PM
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For less worn cush drives not allowing inner tube rubber to fit, sheet aluminum shims will work.

Pat- 2007 DL650A was ridden to all 48 contiguous states. I didn't quite make it to 17,000 miles on the 2012 DL650A.
Nicknames I use to lessen typing, Vee = 2002-2012 DL1000s. Vee2=2014-2016 DL1000s. Wee = 2004-2011 DL650s. Glee = 2012-2016 DL650s
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post #3 of 46 Old 07-30-2010, 09:19 PM
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Awww maaaan....

I just had the rear wheel off like 3 days ago...

I am not going to pull it again until I have the convenience of a center stand (on my birthday wish list...my birthday is in Aug...I can hope...) but this may just be worth the trouble when I do get the wheel off next time.

Last edited by DRoss; 07-30-2010 at 09:22 PM.
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post #4 of 46 Old 07-30-2010, 09:32 PM
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I googled it after finding this thread, and apparently it is a pretty well known mod on other cush drive bikes. Picked up some good ideas for other shim materials:

Plastic for sale signs
Milk Jugs
Lids from butter container
Flexible cutting board material

I am sure the list could go on and on.
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post #5 of 46 Old 07-31-2010, 11:07 AM
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Any pics of how you inserted the shims for us that just cant picture it in our minds?
Mike

2007 Blue DL650 V-Strom - running out of farkle's to do so bought the VEE
2006 SILVER DL1000 - Running out of Farkles also!!!
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post #6 of 46 Old 08-01-2010, 12:47 PM
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Price of cush drive inserts?

At 15,000 miles, equivalent to five trips across the USA, why not just replace the rubber inserts? It's easier than adding shims. Note that I haven't priced the inserts so I'm guessing they're pretty expensive, in which case I can understand the shims. I'm as cheap as the next guy.
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post #7 of 46 Old 08-01-2010, 04:38 PM
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post #8 of 46 Old 08-01-2010, 06:06 PM
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post #9 of 46 Old 08-01-2010, 08:19 PM
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Quote:
Originally Posted by Fellow Traveller View Post
At 15,000 miles, equivalent to five trips across the USA, why not just replace the rubber inserts? It's easier than adding shims. Note that I haven't priced the inserts so I'm guessing they're pretty expensive, in which case I can understand the shims. I'm as cheap as the next guy.
It's not that expensive to do. HERE.

Mine were pretty worn, so I opted to go with new. If I were in a pickle, which is most of the time, I wouldn't hesitate to shove any of the materials listed above, into the system.

B.

2007 DL-650 (I gave away in 2012 with 111,000 + miles)
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post #10 of 46 Old 08-01-2010, 08:40 PM
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I didn't replace or shim until 45k miles (DL650). At that point, I did the replacements and new rear axle bearings.

-Tom (DL650AL2) (KA1TOX) (E-I-E-I-O)

This message and images are licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. http://creativecommons.org
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