porsche

Check that the plugs are not fuel fouled, check that you have a good spark, Start here.

mark (mhpautos)

Chances are its not fuel fowled due to it having dual ignition.It may not be getting any fuel pressure.Check the fuel pump up front underneath.Or you can pull a coil wire off one of the distributor caps,put it approx 1/2" from a grounded surface and have someone crank it over and see if the spark jumps across.If you have spark this will at least eliminate an ignition issue.