Ken No I have a moki ignition, first spark is not retarded yet static timing is set at 28 degrees btdc, I presume it retards at second firing.
thanks for the link, ill read it
p.s. I use a electric start and the engine is only 22cc, so I guess the retard is not really neccesary, come to think of it idle is quite rough, so its even possible that my unit is faulty and not ever retarding, no-one else seems to use these units and I can find no info on the net, ill have to strobe it sometime