Irish,
In 1994 I got a snow blower with a Tecumseh 5HP horiz. engine that would idle but would not take higher speed after the carb got rebuilt by a mechanic, so I picked it up for free and cleaned out the holes on the tube and it took off. The mechanic told the guy the motor was shot. While running it for awhile the key broke on the crank, the mechanic did not tighten the motor bolts and came loose, so I made a key then the rope broke. I had to buy the rope and supply labor and I used it for years, not bad for $1.90. A couple of years ago the end of the crank broke off so I put a B&S 5HP on it. I still have the old motor and plan to fix it, it only broke off even with the nut that holds the wire screen and the pull rope starter, it does not have any forces on that end and don't know why it broke.
Paul