"Don White" wrote in message
...

Try here...might help.....
http://www.smalloutboards.com/4Stroke.htm



It is a nice comparison that is for small outboards but is out of date as
it does not include DFI outboards. Every 2-stroke "CON" on the site does not
pertain to the new Evinrude E-TECs They also have less emissions, quicker
starts, and less maintenance than equivalent 4-strokes.

On small 4-strokes the carbs gum up quicker due to their smaller jets and
passageways. Also carbureted 4 strokes are sometimes harder to start, and
have to be warmed up foe quite a while before they will idle and accelerate
smoothly, EFI models do not have that drawback. You have to use the fast
idle lever for warm-up and carb 4-strokes engines do not meet the Caliornia
3-star emission rating. Overheating problems on 4-strokes can result in
scored pistons that allow oil burning and a blue smokey exhaust, unless the
engine is expensively rebuilt.

Bill Grannis
service manager