"Harry Krause" wrote in message
...
NOYB wrote:
"Gene Kearns" wrote in message
...
On Mon, 22 May 2006 19:34:12 GMT, NOYB penned the following well
considered thoughts to the readers of rec.boats:


But that same day, the owner of the dealership called to pitch me on
four-strokes.
I'm with Harry on this. If you go to 4-stroke.... go for MAXIMUM
horsepower and prop accordingly to hold the RPMs in the lower
acceptable max band.


Max. hp on the 2001 Marlin is 500hp.

Yamaha has a performance bulletin on those engines with 15 1/4x19 props.
It runs 47.5 mph at 6000 RPM.




Be sure to let us know what GPH that speed translates into...it should
be...astronomical! I'm not too unhappy burning 10-11 gph at a nice cruise
speed in Yo Ho. Faster than that, and I have to wield a scimitar.


According to Grady-White and Yamaha...

42.6 gph at 47.5mph.

http://www.gradywhite.com/popup/spec...300&file=F250T

But I should be burning 4-5 gph less with these engines at 30 mph than with
the old two-strokes.