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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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Old 21st January 2021
boomerguy boomerguy is offline
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Quote:
Originally Posted by IXL2Relax View Post
The short answer is no...

The purpose of the diaphragm spring is to hold the clutch plates tightly together, preventing them from slipping past each other, to allow the transfer of power from the crankshaft to the transmission, thru to the wheel.

If your modified-stock clutch is doing that, there can be no further advantage to holding the plates more tightly together.

At any point where the modified-stock clutch fails to hold the plates together, allowing them to slip, then a consideration should be made as to why they are doing so, from wear, from increased hp, from improper oil, or something else. The implemented changes should be based on the reason for the failure.

But here is the Sportsterpedia page on the Clutch & related parts:
http://sportsterpedia.com/doku.php/t...vo:priclutch01

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Thanks for the quick reply. I was hoping someone could verify this. There is no problem at all with my clutch diaphragm spring and its keeping the clutch pack together. I was just concerned with its longevity in losing any of its shape which could make it weaker.

Between this weaker-than-1200 spring and my FAG 7200B throw-out bearing, I am extremely pleased with the light clutch pull at the lever.
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