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Old Feb 16, 2015 | 03:35 PM
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I've heard about alot about sportster clutches taking a dump and wondering if anyone knows. Is it easier on the clutch to take off slow and easy by slipping it or just dump it and get going ? I usually let mine out pretty quick but the rpm's aren't very high so the engine bogs down a bit. I've thought about it and there seems to be pro's and con's about which would be tougher on the rivets.
 
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Old Feb 16, 2015 | 04:01 PM
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If you accelerate quickly you will only need to slip the clutch briefly, to get the engine into it's comfort zone. Unless you ride the clutch a lot, or are brutal with it I can't see it giving any problems. It's those wheelies from every light that can cause problems......
 
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Old Feb 16, 2015 | 04:12 PM
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If the rivet plate goes, it could well trash the entire clutch basket.

A $100 preventative mod could avoid a $1000 dollar repair job... and tow.


Just my opinion.
 
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Old Feb 16, 2015 | 05:26 PM
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Which model/year Sportys does this affect??
 
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Old Feb 16, 2015 | 05:50 PM
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Originally Posted by roundy
Which model/year Sportys does this affect??
'04 and newer for sure, I'm not that familiar with the older models but they might have the spring plate as well. Some of the BTs had this also.

This spring plate is really pointless, and replacing it with an extra friction disk actually provides 2 benefits: more friction surface and one less thing that can break leaving you stranded (it certainly isn't going to break sitting in your garage)
 
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Old Feb 16, 2015 | 08:18 PM
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The earlier "rigid" mounts did have some problem with the "springplate" but no where near as much as the "rubbers"! They have been known to go as early as 10,000 miles while some are doing just fine at 90,000.
 
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Old Feb 16, 2015 | 08:47 PM
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I pulled the plates in my 04 around 30,000, and the rivets were loose, but none missing. Probably could have gotten by with just buying the extra plates to eliminate the spring plate, but with the mileage decided to put a Barnett set in it and probably never have to worry about it again. If I bought another used sporty, that would be one of the first things I'd do to it, along with fluid changes, Lyndall brake pads, and replace the Dunlop tires all the used ones seem to have with Avons.

As far as slipping or dumping the clutch, it's designed to slip, doubt if easy takeoffs even affects the longevity of the plates much, but dumping is hard on everything from the engine to the wheel - but you'd probably have to really abuse it to break anything.
 

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Old Feb 16, 2015 | 10:17 PM
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Originally Posted by Imold
I pulled the plates in my 04 around 30,000, and the rivets were loose, but none missing. Probably could have gotten by with just buying the extra plates to eliminate the spring plate, but with the mileage decided to put a Barnett set in it and probably never have to worry about it again. If I bought another used sporty, that would be one of the first things I'd do to it, along with fluid changes, Lyndall brake pads, and replace the Dunlop tires all the used ones seem to have with Avons.

As far as slipping or dumping the clutch, it's designed to slip, doubt if easy takeoffs even affects the longevity of the plates much, but dumping is hard on everything from the engine to the wheel - but you'd probably have to really abuse it to break anything.
+1 believe that is the whole idea of the spring plate - to widen the friction zone, though I did not notice any lack thereof changing to an extra plate clutch.
 
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Old Feb 16, 2015 | 10:20 PM
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Removed from a 2006 Sportster 1200 with 15,000 miles.
 
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Old Feb 17, 2015 | 11:26 AM
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Originally Posted by John_K
+1 believe that is the whole idea of the spring plate - to widen the friction zone, though I did not notice any lack thereof changing to an extra plate clutch.
Mine seems even smoother without the spring plate. The loose rivets might have affected the feel with the original plates. I'm real happy with the extra plates setup.
 
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