Ignition Timing

Information relating to the Matchless G80 or AJS Model 18 500cc Heavyweight.
Mick D
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Location: Aberdeenshire

Re: Ignition Timing

Post by Mick D »

I did say anally - :beer:
SPRIDDLER
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Re: Ignition Timing

Post by SPRIDDLER »

The advantage of the thin 'coat hanger' is that it can be positioned vertically in the plug 'ole, whereas I think that with the ones that screw into the plug 'ole one has to make an allowance for the fact that they are always at an angle so the 1/2" reading will be less (more?) than 1/2" of piston movement, especially if the end of the rod is resting on the slope of a domed piston crown.

When you look at the tiny difference between the 7/16" and 1/2" marks on the 'SpridTimer' coat hanger it's easy to see how backlash in the cam and mag chain etc. can affect the end result no matter how carefully one follows the correct procedure.
'There is a tide in the affairs of men
Which taken at the flood............'
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Expat
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Re: Ignition Timing

Post by Expat »

Mick D wrote:I did say anally - :beer:

Oh, I thought you said "annually". ;)
Keep shiny side up.

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Matt Durkin
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Joined: Thu Jun 11, 2015 10:06 am
Location: Scunthorpe

Re: Ignition Timing

Post by Matt Durkin »

I am currently at the 'setting timing' stage on a project that has been put off for quite some time.
I'm in a tank-off position so find that a knitting needle is working well, since I can get a more direct straight entry down plug hole.
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raffles
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Location: NORTHAMPTONSHIRE UK

Re: Ignition Timing

Post by raffles »

Dont know what there is to take up all these pages. these things are so simple any fool can
time them AND many of us have. Now where have I left my stopwatch.
Tony
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spookefoote1956
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Re: Ignition Timing

Post by spookefoote1956 »

raffles wrote:Dont know what there is to take up all these pages. these things are so simple any fool can
time them AND many of us have. Now where have I left my stopwatch.
Tony
It's lovely to be talked down to. Now why did I leave the VMCC and this club is struggling to find the next generation of members?
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raffles
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Re: Ignition Timing

Post by raffles »

OOOOPHS no sense of humour,
Tony
G15 Roy
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Re: Ignition Timing

Post by G15 Roy »

Now why did I leave the VMCC and this club is struggling to find the next generation of members?[/quote]

Not sure where this comes from as membership has been steady for the last four years, yes it would be nice to see some from the next generation join us but we will survive .
Roy
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