I don't know much about it. I won't be getting my shop manuals until I get my next second shift paycheck, next week.
Anyhow, on cars there are two ways to check timing, static and dynamic(running)
I expect thats what this means too.
Usually on a car you use static timing to get the thing running and dymamic to make sure the spark advances enough at speed.
On a sled I don't have the SLIGHTEST idea how you'd do it.
I do know that there is a website http://www3.sympatico.ca/ve2fch/page2.html where you can download a form to send off for the manuals for your sled.
the difference i believe is that direct ignition setting is the position of the stator plate in relation to the crankcase. And the indirect setting used to adjust timing is the variation of the point gaps within the specs.
Polaris is my way out - Other people just use a door.
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