I lost a deal on a older Toro 2 stroke Suzuki, but now a similar model has come up CL, but with a 4 stroke Suzuki. I know the 2 strokes are highly regarded. Anyone know about the 4 stroke Suzuki used in the older Toro Recyclers? Anyone know specifically about the engine build on the 4 strokes? I'm assuming they are commerical grade - sleeved, used hardened connecting rods? Anyone?