1949 AJS 350 ignition timing

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Mac01
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Joined: Sun Sep 02, 2018 8:05 am
Location: Kent UK

1949 AJS 350 ignition timing

Post by Mac01 »

Good afternoon and Happy new Year to you all.
I'm ready to set up the ignition timing on my 1949 Model 16 (cylinder head off)
As far as I have read, its piston, 7/16 of an inch before TDC, on the firing stroke, fully advanced, points just opening. (points, 12 thou gap)
Is this correct ?

Many thanks.
Mac.
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ajscomboman
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Joined: Mon Jan 01, 1990 12:00 am
Location: HAMPSHIRE UK

Re: 1949 AJS 350 ignition timing

Post by ajscomboman »

Spot on.
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clive
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Joined: Mon Jan 01, 1990 12:00 am
Location: LONDON UK

Re: 1949 AJS 350 ignition timing

Post by clive »

Or half an inch BTDC with the better fuel now available than in 1949. Try setting it for half inch and see if it runs best at fully advanced or better a tad less advanced. You will know what is best then next time you set it. :twisted: :twisted:
clive
if it ain't broke don't fix
Mac01
Posts: 28
Joined: Sun Sep 02, 2018 8:05 am
Location: Kent UK

Re: 1949 AJS 350 ignition timing

Post by Mac01 »

Thank you.
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