Llew,
Just one thing about the Honda GX120, you'll need to order it with the 3/4" imperial PTO shaft, not the 18mm metric one.

The Kirby PTO shaft size should be 3/4", so the old clutch half will fit.

Last edited by Gadge; 24/05/16 12:50 AM. Reason: correct model and shaft size

Cheers,
Gadge

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