Could just be flooded too? Some sleds or bikes just won't start flooded (when fuel has pooled in crankcase area.... something wrong with carb float area?). Pull out plugs they look lwet but when you check on side of engine sparks fine across gap as expected not fouled. Inno crank drains i put a lot of rags over opened plug holes and push around with full off and ignition off
sleds I’ll pull over with no plugs and after that may grab the propane torch and force of few combustion cycles.
Well I hope Stan let us know what he finds out. Hope its simple. either way it can be fixed with just a little time and money maybe.