This is what one guy told me, when he gave away a "broken" floor
sweeper. Its Kawasaki gasoline engine would not start.
We dumped all old gas, put in new gas, it still would not start. More
investigation showed no spark.
The machine has a safety switch that prevents ignition, unless both
doors are closed. It turned out that the switch was missing a little
dowel pin and would not engage, so the safety switch would prevent
I made a pin from a piece of tig filler rod and now this sweeper works
great. If it was a propane pased sweeper, I could consider keeping it.
I am not trying to engage in self aggrandizement, because a) it was a
simple problem and b) I am guilty of being just as dumb in other
10 years ago