Re: new tohatsu 20 hp
I bought one online earlier this year. 20hp, electric start. Just barely got thru the breakin period, but so far so good. It is the same motor as Mercury and Nissan. Pushes a 14 foot tinny just fine. Might be bit small for 16 foot, depending one weight of the boat, and how many folks in it.
Usual rule of thumb is to get at least 75% of manufacturers max rated hp for the boat.
dm