Kohler’s answer to a dead ASAM is a $222-and-up MDI kit, and the
forum’s answer is a DSAI speed advance module and flywheel lifted
from a CV740 donor. The swap is real, unblessed, and only cheaper
if the donor is already in the corner; the part that everyone
mislabels, the 24 584 36-S coil, is not part of it at all.
A stripped spark plug hole looks like a new-head sentence, and it almost never is. The thread is M14 by 1.25 on nearly every small engine that matters, one repair kit fits the family, and the decision tree between a $38 Heli-Coil, an $80-plus Time-Sert, and an actual new head is shorter than most owners expect.
The 92-6518 traction cable is sold as one sealed piece, so when a Lawn-Boy or Toro stops self-propelling, most owners replace the whole thing. The real failure is a small spring at the engine end, and you can swap just that.
A snapped recoil spring doesn’t have to end a forty-year-old Lawn Boy C-12. The OEM spring (602610) is no longer made, but the Stens 155-051 crosses straight to it for about $5 on eBay — here’s the exact part to buy and how to swap it safely.