Hi Jack,
Believe it or not, Royal Enfield were still using a half inch Villiers thread on their crankshaft nut up until 2008 when they came out with a completely redesigned motor

Entire Thread
Subject	Posted By	Posted
Vintage Greens Cylinder Mower	Wonka	26/02/08 03:42 AM
Re: Vintage Greens Cylinder Mower	Bruce	26/02/08 09:17 AM
Re: Vintage Greens Cylinder Mower	Wonka	26/02/08 01:28 PM
Re: Vintage Greens Cylinder Mower	Bruce	28/02/08 12:18 PM
Re: Vintage Greens Cylinder Mower	Willo	31/10/19 04:50 AM
Re: Vintage Greens Cylinder Mower	CyberJack	31/10/19 10:29 AM
Re: Vintage Greens Cylinder Mower	Willo	10/11/19 03:30 AM
Re: Vintage Greens Cylinder Mower	Willo	10/11/19 03:30 AM
Re: Vintage Greens Cylinder Mower	CyberJack	10/11/19 09:24 AM
Re: Vintage Greens Cylinder Mower	Willo	11/11/19 06:27 AM
Re: Vintage Greens Cylinder Mower	Willo	06/04/20 07:46 AM
Re: Vintage Greens Cylinder Mower	CyberJack	06/04/20 10:13 AM
Re: Vintage Greens Cylinder Mower	Willo	06/04/20 10:17 AM
Re: Vintage Greens Cylinder Mower	Willo	06/04/20 11:47 PM
Re: Vintage Greens Cylinder Mower	CyberJack	07/04/20 08:35 AM
Re: Vintage Greens Cylinder Mower	Willo	20/04/20 11:27 PM
Re: Vintage Greens Cylinder Mower	Willo	21/04/20 11:13 PM
Re: Vintage Greens Cylinder Mower	Willo	16/04/20 06:07 AM
Re: Vintage Greens Cylinder Mower	Willo	16/04/20 09:11 AM
Re: Vintage Greens Cylinder Mower	Willo	20/04/20 11:31 PM
Re: Vintage Greens Cylinder Mower	NormK	20/04/20 11:44 PM
Re: Vintage Greens Cylinder Mower	CyberJack	21/04/20 01:06 PM
Re: Vintage Greens Cylinder Mower	Willo	22/04/20 12:41 AM
Re: Vintage Greens Cylinder Mower	NormK	21/04/20 11:29 PM
Re: Vintage Greens Cylinder Mower	CyberJack	22/04/20 07:56 AM
Re: Vintage Greens Cylinder Mower	CyberJack	22/04/20 08:11 AM
Re: Vintage Greens Cylinder Mower	Willo	22/04/20 10:59 PM
Re: Vintage Greens Cylinder Mower	Gadge	23/04/20 08:48 AM
Re: Vintage Greens Cylinder Mower	NormK	22/04/20 09:35 AM
Re: Vintage Greens Cylinder Mower	CyberJack	22/04/20 10:27 AM
Re: Vintage Greens Cylinder Mower	NormK	23/04/20 09:36 AM
Re: Vintage Greens Cylinder Mower	Willo	02/05/20 04:10 AM
Re: Vintage Greens Cylinder Mower	NormK	02/05/20 04:25 AM
Re: Vintage Greens Cylinder Mower	Willo	02/05/20 04:55 AM
Re: Vintage Greens Cylinder Mower	CyberJack	02/05/20 05:19 AM
Re: Vintage Greens Cylinder Mower	Mystyler	02/05/20 02:23 PM
Re: Vintage Greens Cylinder Mower	Willo	11/06/20 04:36 AM
Re: Vintage Greens Cylinder Mower	Mystyler	11/06/20 02:29 PM
Re: Vintage Greens Cylinder Mower	Willo	12/06/20 07:10 AM
Re: Vintage Greens Cylinder Mower	Mystyler	13/06/20 11:02 AM
Re: ATCO Qualcast Muffler	Willo	25/03/21 09:45 PM
Re: ATCO Qualcast Muffler	midget98	21/08/21 08:21 PM

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