Ted,I have a first year Wigeon that I will run an electric 44lb thrust motor this year.I am considering a 6 or 8hp 2 stroke,
if I can find one.(wt 57lbs).One thing I noticed is that the adjustable motor mount is too high for a 15" motor,when the
mount is down to the point where it will hit the drain plug if it goes any further.I believe the mount shaft must be shortened in
my case at least.When I do get a gas motor,I'll remove the drain plug,slide the shaft down to where I have 15" from the botttom of the hull
to the top of the motor mount,mark it and cut it off the bottom.Hopefully the holes will line up at this setting,or I'll drill new ones.
If your boat is set up ok,I would have hoped that the 5hp would move it along pretty good.It's not a true planing hull.