I got curious and went out to weight the engine. It's a Nissan 8 2-stroke short shaft (old engine from the mid 90s) that weighs in at 59lbs.

The tricky part is that it's so top heavy that if you stand it up on deck when passing it aft the bottom fin has a tendency to slip and if it goes in the right direction you have all that engine trying to force the sharp blade, fin etc towards your ankles. Ask me how I know.....

:: I've put a 40lb engine (Nissan 6 or 8 short shaft) on
:: with no problems. Wrestling this monster on with
:: insufficient help or when the boat is rocking and
:: rolling is a great way to really bash your ankles with
:: the shaft. Use a good safety line and also be careful
:: with the throttle when in reverse as it can cause the
:: mount to jump right out of the boat.
::
:: The speed an fuel efficiency of this engine is great.
:: I've motored for hours in the delta, against the current
:: in the bay when there is no wind etc.
::
:: :: I've had a barrowed, 8 HP Mercury (90#) hung on the back
:: :: during a 2 day coastal run, but I wouldn't do it again.
:: :: In a seaway, there'd be almost no way to take it off the
:: :: mount, if there was a problem with it. But if the wind
:: :: dies, you sure can make some tracks!
:: ::
:: :: :: What is the biggest motor that has been used on the
:: :: :: aluminum insert style motor mount for the express 27? I
:: :: :: am curious about the weight factor.