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Ignition timing

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florence:
I have noticed that some people mention dynamic timing.

I have always static timed mine and it seems to run fine.  Does dynamic timing actually make a difference?

What is dwell? Does this only apply in the USA?

Seamus:
Hi Florence

Dynamic timing is using a strobe. Theoretically better because you are checking the timing when the engine is running. This should be more accurate and you can see if the advance is working.

Dwell is the number of degrees on the cam that the points are closed. The closed position allows the coil to obtain the correct 'charge' (for want of a better word), so that when the points open, a good spark is generated. Too short and the spark will be weak. This is usually sorted by adjusting the points gap.

Hope this makes sense

Seamus

florence:
Thanks Seamus, I think I'll leave alone because it seems to work well.

Bryanj:
Seamus is not quite right for the Honda's as on full advance there is not exact timing mark just two lines that the timing must be between, Honda consider it more important to have the timing correct at tickover.

Dwell is an electronic measurement of points gap and as different people "Feel" the drag on feeler gauges differently more accurate than using feelers----especially when its a Numpty apprentice doing the job------20 odd(make that 30) years ago i had an argument with an apprentice about doing points and timing on a ford V6 with him saying it couldn't be do accurately without dwell meter and strobe, so i showed him on mine and when he played with his electronic bits it was spot on and he wandered off mumbling rude words

SteveD CB500K0:
I have a strobe and have tried it many times over the last 30 years. I never really got on with it as
a) it jumped around abominably and was very difficult to read
b) it never showed that my static setting was wrong

Now I don't bother and just use the static method

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