I may be a bit late to this discussion but we've had really good luck with our Honda 2 horsepower outboard on our Montgomery 15 and it has had more than enough power in our experience except maybe once when motoring into a strong wind. We use the motor often on long trips and typically motor at low power settings. We get about 2 hours on the internal tank which I think is around a liter. We have an external tank, usually 3.5 gallons, that we pump with a outboard fuel hose with a bulb pump in it through a modified cap to fill the internal tank. This is a system I read about here. It works great even in rough seas. We secure the external tank in the back of the cockpit. We use the 3.5 gallon external tank each year we go to Lake Powell and, with some sailing in there, have covered I think over 150 miles lake some years on one 3.5 tank (we usually stop and add some but typically have ended with about what we put in). David GrahBishop CaliforniaMontgomery 15 - Sky From: Dave Scobie <scoobscobie@gmail.com> Sent: Tuesday, May 31, 2022 6:31 AM To: For and about Montgomery Sailboats <montgomery_boats@mailman.xmission.com> Subject: M_Boats: Re: Fuel transfer Jim. The best fuel can setup is having one 1-gallon and a larger 2.5 gallon. The 1-gallon is used to fill the motor. As the one gallon empties transfer fuel from larger to smaller can. Use the No-Spill brand - https://nospill.com Having 3.5 gallons aboard gives you 14 hour range. Use gallons/hour as direction wind/current/waves will increase/decrease range = KPG (knots per gallon) isn't consistent for distance over ground. If you need more range have the large container be a 5-gallon. Store containers at the aft end of the cockpit. NEVER in a locker or below! :: Dave Scobie :: M6'8" #650 :: Baba 30 #233 DEJA VU :: SV SWALLOW - sv-swallow.com :: former owner M17 #375 SWEET PEA - m17-375.com :: former owner M15 #288 SCRED - m15namedscred.wordpress.com <<-- new site!