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Bruce In Bangkok Bruce In Bangkok is offline
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First recorded activity by BoatBanter: Dec 2008
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Default Air cooled two stroke as inboard?

On Mon, 24 Aug 2009 11:41:40 -0400, JustWait
wrote:

In article d07591e1-4de8-4e4a-9dca-
,
says...

I had a brainwave the other day about putting a small (300cc)
aircooled two stroke as an inboard in a small wooden boat. With
adequate air circulation can anyone see any potential issues here? I
would build the boat with this purpose in mind so adapting something
to fit would not be a problem.

Robin


Two strokes want to run at one speed... It would be very inefficient in
that situation. Not to mention, unless it was a race boat, the sound
would probably draw gunfire on the local lakes


Err - like the Yamaha 250? The one that used to trounce 500 cc
4-strokes in the old days? Even with its tuned pipes it has usable
over several thousand RPM.

Actually it is the tuned exhaust that wants to run at one speed. The
old 2-stroke motorcycles - Famous James, et al, were happy to run over
a fairly broad range. (So is my 2-stroke outboard :-)

Cheers,

Bruce
(bruceinbangkokatgmaildotcom)