Thanks, Winder. Nice to see "on Topic" postings.


"winder" wrote in message
oups.com...
Light weight, but talk about an engine that burns oil!

This system introduces a mixture of gasoline, air and lubricating oil
into the combustion chamber, compresses it, and then ignites the
resulting mixture with a sparkplug. The two-cycle engine has been the
mainstay for outboard engines. In recent years, however, two-cycle
outboard motors are beginning to be replaced by four-cycle systems.
The biggest advantage of the two-cycle engine is that it is very
lightweight. The horsepower to weight ratio is the highest in marine
reciprocating engines. One big disadvantage is you have to burn a fuel
mixture of gasoline & lubricating oil.

Another disadvantage is, because the lubricating oil does not burn as
cleanly as gasoline, two-cycle engines tend to smoke, and foul their
ignition systems. They also can leave an oily residue on the water from
their exhaust. However, great improvement has been made in cleaning up
their exhaust emissions through the use of more efficient fuel
injection systems.

Best regards
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