Ignition Timing

Information relating to the Matchless G80 or AJS Model 18 500cc Heavyweight.
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Re: Ignition Timing

Postby Mick D » Tue Jul 18, 2017 2:25 pm

I did say anally - :beer:

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Re: Ignition Timing

Postby SPRIDDLER » Tue Jul 18, 2017 4:25 pm

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.
What if the Hokey-Cokey is what it's all about?

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Re: Ignition Timing

Postby Expat » Tue Jul 18, 2017 5:15 pm

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



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

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Re: Ignition Timing

Postby Matt Durkin » Mon Nov 06, 2017 3:43 am

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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Re: Ignition Timing

Postby raffles » Mon Nov 06, 2017 7:16 pm

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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Re: Ignition Timing

Postby spookefoote1956 » Sat Nov 11, 2017 7:43 pm

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?
Hail Joe Lucas ............ Prince of Darkness!

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Re: Ignition Timing

Postby raffles » Sat Nov 11, 2017 7:49 pm

OOOOPHS no sense of humour,
Tony

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Re: Ignition Timing

Postby G15 Roy » Sat Nov 11, 2017 8:14 pm

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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