ol 55, on that chart, my plugs look like the picture at centre top. Normal using lead replacement petrol.
Dragsix, thank you for the thorough explanation, but I've led you astray, by writing my reply in a hurry. I can tell my mechanical advance is working by looking at the flywheel. It advances way past the idling position. The Vacuum advance wasn't connected at the time.
WICruiser - thankyou also for the thorough explanation. As mentioned I'm running the highest octane fuel generally available in Australia. 98 octane, but as pointed out before that may equate to about 94 in the US.
Today, I'll test pulling the choke out as it starts to ping. Hopefully that'll help explain things.
Last edited by Peggy M; 02/03/2024 1:14 AM.
