On Mon, 24 Aug 2009 19:44:45 -0500, cavelamb
wrote:

snipped...

Why? The little 1 KW (actually 900-something watts) 2 stroke units,
made in India by the way, run as quite as a 4-stroke.

Not all 2-strokes have tunes exhaust.

Uhm, Bruce, that turns out not to be the case.

Think of the exhaust pipe as part of the intake system.

These India units may be quieter than others, but the pipe is still tuned.

I promise.

Nope, it isn't. I know because mine rusted out the exhaust and I took
it off to have a look at making a new one. Someone stole it before I
could make the new one but it certainly did not have a tuned exhaust
In fact it was the spitting image of a Honda 4-stroke muffler.

Two strokes don't NEED a tuned exhaust and they didn't have them for
years and years. Have a look at a Famous James motorcycle, or the
early Jawa's, or even the Harley Davidson two stroke from the late
1940's. Or model airplane engines, for that matter.


Cheers,

Bruce
(bruceinbangkokatgmaildotcom)