I have been looking through part catalogues from 84 onwards, all 600s use the same flywheel as everything else - even the TAC edger.

I heard the FC TAC used a heavier flywheel, but the 1982 catalogue has it with the same as everything else. Having been thrown on my bum starting a TAC without a belt, I know how it feels

Its worth noting every PT 600 uses this decomp nozzle https://www.outdoorking-forum.com.au/engines...tools/victa-decompressor-nozzel-en72794a


I did find some interesting things, which I will make new threads for in a few days - mainly relating to carby and why the PT is stated as so weak in Nm tests