Welcome to the KT100S and KT100J Italsport Red Clutch Installation Guide.  In this guide, we'll cover the long shaft model (typically used on KT100J, but also on KT100S with long shaft crankshafts) as well as the short shaft model (typically used on KT100S).

We'll also cover the extended 9T and 10T short shaft installation - scroll to the end for this.

If you're not sure if you have a long shaft or short shaft engine, click the link below. 

LONG SHAFT KT100J & KT100S CLUTCH INSTALLATION

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SHORT SHAFT KT100S CLUTCH INSTALLATION

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