"Waynemak" wrote in message
...
You can reduce the noise with a better muffler, but keep in mind it fires
every cycle. I KNOW its not a 2 stroke BUT it does fire on every stroke.
the
motor fires both on compression and exhaust, and it fires at some point
before TDC so the exhaust valve is just about shut when it fires.


Blink. Blink. Fires?

I don't think so. It may provide spark on every cycle, but it has nothing
to burn for it to "fire". It's discharging the spent air/fuel mixture that
fired on the previous cycle. I certainly can't imagine the spark creating
that kind of noise. Unless something is woefully wrong with the engine, the
gasses contained within the cylinder on the exhaust stroke won't ignite.

Air cooled engines tend to be noisier than water cooled engines. I imagine
the engine in question is air cooled. Years ago I converted an 8 horse
air cooled Kohler engine to a water cooled engine. It ran much quieter.
The water jacket provides considerable damping.

Harold