Arnold... I have the exact same outboard. Mine was the one that was not running so well a few weeks ago because of varnish problems and old fuel (heck, it wasn't running at all). After a carb clean she is running like a champ. And now she has Sta-bil in her so we are good to go. I just went to Lake Tahoe a couple weeks ago and it was glassy for part of the day so i used the outboard a bit. I would guess that i ran dry after about 20 minutes or so... that said, i guess i can go about an hour on a gallon of gas. I am considering getting the external hose attachment for just such an occasion as i purchased this setup for harbor use only. Sailing Lake Tahoe... does it get any better than that? What a beautiful place!!! Jeff M17 #336 Arnold Sharpe <afsharpe@mac.com> wrote: Hey out there in Monty land' I have a M-17 with a 4 hp, 4 stroke, Nissan outboard. It has an internal fuel tank that holds about 1/3 of a gallon. While I don't do a lot of motoring, I have been trying to figure roughly how long I can run on a tank of gas. I don't have a manual and I can't find anything on Nissan"s web page. The tank is poly and is really odd shaped so tank calibration is not a possibility additionally, to sight the tank I must shut down and remove the remove the cover. Short of doing a test in which I run around in circles until I run out of gas, does anyone out there have the same motor and some similar experience. Thanks..Arnold on M-17 "LITTLE BREEZE" _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats