A long shaft Yamaha or Honda would be a good choice. It will run you about
$300 to $800 more than a Mercury or OMC (Johnson / Evinrude) but these are
bullet-proof motors. The Yamaha's are little rare in some parts of the
country but the Honda's are fairly available. If you are going out of
country (like Mexico) you may want to consider a Mercury. Note too that the
Nissan, Suzuki and Mercury (Mariner) small bore motors are actually made by
Tohatsu. The size you want is about right for that boat. Anything from 4
to 8 hp should do the job... more costs more so think about your horsepower
with the idea that it may be used for hours at a time if you have no wind
and are impatient or if you have a lot of wind and need to handle the boat
against it.

Best;
Chris

"Bruce" wrote in message
...
I need to buy an outboard for my San Juan 21 and not quite sure about how
big to go. I would like a 4 stroke and I am thinking that about 5 HP
would
be a good size. Any comments about the different brands would be
appreciated.
Also, do I really need a "long shaft" motor. With the motor mount
currently
on the boat, it seems to me that any motor would easily bury the prop.

Regards,
Bruce