With the adjustable motor bracket currently installed on new M17's,
the short shaft motor will be ok until the water gets really rough;
then occasional cavitation can occur, especially if you have a fair
amount of weight forward.
--Gary
On Feb 7, 2008, at 10:25 AM, Tom Jenkins wrote:
All this good information brings up another question. What is the
minimum
shaft length for effectively pushing a 17 in a variety of conditions?
Although a long shaft (>20") is obviously best if you are buying it
for this
single purpose, there are a lot of good short shaft motors already out
there, and they are handy if you have an inflatable or fishing skiff.
Tom Jenkins
M17 Scintilla
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Gary M
Hyde
Sent: Wednesday, February 06, 2008 8:02 PM
To: For and about Montgomery Sailboats
Subject: Re: M_Boats: motors
The Yamaha 4 hp 4 stroke weighs 48 lb and has both internal and
external fuel tanks and comes in either 15 or 20 inch length.
The 2.5 hp model comes in only the 15" length, and weighs 37 lb.;
internal fuel tank only.
Check out this link.
http://www.yamaha-motor.com/outboard/products/subcatspecs/5/specs.aspx
--Gary
On Feb 6, 2008, at 6:47 PM, Larry E Yake wrote:
Tohatsu now makes a 3.5 horse 4 stroke long shaft that only weighs 41
lbs. Might be a pretty good motor for those wanting something light
for
their M17's. It looks like it shares the same "chassis" as the 2
hp. If
you want to move up to a 4 hp, which shares the same chassis as the
5 and
6 hp motors, you jump to 57 lbs, but gain the external fuel tank
option.
The Suzuki and Yamaha 3.5 outboards look interesting for light use
also,
but as of yet do not seem to be available in long shaft models.
Larry
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