When we set timing i use a digital timing light that reads RPM [tach] in it.
Clip it to #1 plug wire and a power [battery].
Fire up the tractor get it warm then set it to full throtle. Turn the dist tell you get max rpm then tighten it down. DONE.
I have a dyno and this is a proven method of setting timing if a dyno isn't present.
Not knocking anyone else , Scott knows what he's talking about. The reason we set them this way is that after 50 years ware on these old parts it's hard to use factoy spec and settings everything is sloppy and loose.
I set timing to the condition of that motor.
The best way is under load on the dyno around 1000 rpm ,this gives you everything it has.
I hope this helps everyone here is correct in the directions given.
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