A quick addition, as that engine does have a few variations more than most powertorquest.
Yes, thats the VSX 160, starter, block, crank, piston, conrod, etc. all the same as most 160cc powertorques.
the muffler is the bulby one, which is mostly a cosmetic thing.
There are slight variations to the main jet, and govening/return springs of the carburettor.
It also has a wide air hose, and a strate intake post on the block, not the elbow intake port.
I personally don't trust the 50:1 stuff, I just grab a good, standard, non-victa labled 2-stroke oil, and mix 25:1.
I have a few of the gregories manuals, past 1984 (vortex on cover) you dont learn too much new stuff.
