I am actually considering purchasing an HS80... Beyond the usual things, what are the main pieces to inspect beyond the tracks? I realize these are vintage machines with a fair number of NLS parts but I like buying machines that are actually worth fixing.
I've been nursing a old, freebie, rebadged MTD with a 5HP twin pulley Tecumseh that is done. Faults include 60psi compression, no power, stalls under load, engine surges and no change after a carb rebuild. The machine has thrown gravel for the past two years, is seriously rusty, recoil broken, friction plate is worn, the tires are cracked/leaking and rims are fused to the axle.
Just spent a month laying a new interlock driveway and I wish I could afford a new Honda/Yamaha but it's just not in the budget. Of course, I'm shopping during the wrong season to find a deal on a used Honda! I would prefer the additional traction of tracks over wheels this time around but the alternative is to buy an older 10000 series Ariens and replace the motor if/when required.