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Sportster Motorcycle Transmission, Clutch, Primary & Secondary Drive Transmission, Clutch and primary or secondary drive problems, advice, and/or how tos.

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View Poll Results: Stock Spring plate, has it gone bad on you
Solid Mount- (2003 and earlier) Still Good (below 50k) 58 20.42%
Rubber Mount (2004+)- Still Good (below 50k) 97 34.15%
YES -Solid Mount 10,000-20,000 5 1.76%
YES -Solid Mount 20,000-30,000 3 1.06%
YES -Solid Mount 30,000-40,000 6 2.11%
YES -Solid Mount 40,000-50,000 3 1.06%
YES -Solid Mount 50,000 + 3 1.06%
YES -Rubber Mount 10,000-20,000 25 8.80%
YES -Rubber Mount 20,000-30,000 29 10.21%
YES -Rubber Mount 30,000-40,000 11 3.87%
YES -Rubber Mount 40,000-50,000 4 1.41%
YES -Rubber Mount 50,000+ 5 1.76%
No Solid Mount 50,000+ 19 6.69%
No Rubber Mount 50,000+ 16 5.63%
Voters: 284. You may not vote on this poll

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  #11  
Old 5th November 2013
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I replaced mine at about 9k when I burned the clutch out; spring plate still appeared to be good.

-m
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  #12  
Old 5th November 2013
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I just replaced mine at 20,250 miles with Energy1 due to spring plate failure. I have a 2005 XL1200C.
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  #13  
Old 5th November 2013
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29,000 miles. Don't know if my bike could even do a wheelie or a burnout. I have won a few slow-ride races, though.

IMHO, the spring plate in the rubber mounts is suffering the perils of some of the vibrations that are no longer being transmitted to the rider, mirrors, seats, etc. Don't they call the mounts "isolators?" They don't eliminate the vibrations...they just keep them from going certain places. They gotta go somewhere - why not the spring plate?
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  #14  
Old 5th November 2013
John Harper John Harper is offline
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Quote:
Originally Posted by O.R. John View Post
29,000 miles. Don't know if my bike could even do a wheelie or a burnout. I have won a few slow-ride races, though.

IMHO, the spring plate in the rubber mounts is suffering the perils of some of the vibrations that are no longer being transmitted to the rider, mirrors, seats, etc. Don't they call the mounts "isolators?" They don't eliminate the vibrations...they just keep them from going certain places. They gotta go somewhere - why not the spring plate?
I've wondered the same thing, plus the possible change of manufacturer and/or location of manufacture?

It does make sense, the stress and shock of shifting got transmitted somewhat to the frame with solid mounts. Now it just resonates back and forth within the engine. The old handlebar "buzz" could now take place in the spring plate.

John
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  #15  
Old 5th November 2013
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08 36,000 miles...burnouts,holeshots,wheelies, 2-up,mountains...it's seen it all....Just changed out the clutch before doing the 1250 and it wasn't far off from exploding...Rivets extremely loose no spring left in it....Went with the energy1 and its much better than stock..
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  #16  
Old 5th November 2013
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no problems with my solid mount yet, springs are a bit soft and the main spring isn't really doing that well. With the extra power it is now making since getting hammered I will install an already purchased energy one extra plate kit with a stiffer spring. This will eliminate it altogether, as I have had miserable luck with those springs in my DYNAs and FXRs. But those bikes were used for drag racing and it was already set up to move on to a Rivera pro clutch .
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  #17  
Old 5th November 2013
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09 883 Just replaced mine at 25k with an Energy One. Was working fine prior to the 1250 conversion.

I was expecting the brass rivets to be in pieces...but they were still nice an snug. Plenty of meet left on the plates.

I do wheelies, burn-outs, slow races, and use gearing for braking as much as I do the brakes. For what I put it through I expected it to be in bad shape. It wasn't. But the 883 spring could not hold the NRHS 1250 conversion.

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  #18  
Old 5th November 2013
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Plate from an 07. Shortly after my 1250. Maybe 20 ish thousand on the clock. Don't recall exactly.
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  #19  
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Quote:
Originally Posted by onebrkbstrd View Post
Plate from an 07. Shortly after my 1250. Maybe 20 ish thousand on the clock. Don't recall exactly.
Your photo looks all too familiar.
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  #20  
Old 5th November 2013
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I don't suspect the original owner abused the bike in any way, but since he rode to work in Indianapolis I'd say there was plenty of stop-and-go. I'm absolutely tickled with my new clutch.

Sarah
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