View Thread
Before Posting, Please Read Our Posting Guidelines Below.

1. Use the full 4 digit year for everything you are asking your question about. Example: 1962, 1988, 2000, 2011
2. Include the correct name of your Whaler model. Example: Montauk 17, Montauk 170, Outrage 26, Outrage 260
3. Include the length when necessary. Example: 16, 17, 18, 20, 22
4. Do not post your email address anywhere on this site as it is already in your user profile.

 Print Thread
2014 90hp 4-stroke Yamaha too heavy for 1988 montauk 17
NCWhalerOwner
#21 Print Post
Posted on 05/19/17 - 8:25 PM
Member
Personal Page

Posts: 5
Comments: 0
Joined: 06/10/16

Just put a 90 4 stroke Yamaha on our 1988 17 Super Sport Limited. This is the same hull as a 1988 17 Montauk, just with bench seats. Motor sits great! Boat runs great! Its stern sat a little lower, but that was corrected by changing out 24 gallon tank with long and flat 18 gallon tank. Original motor weighed 305 lbs, this motor weighs 366... by eliminating 6 gallons of gas, we eliminate 50 lbs of weight. 4 stroke you are going to burn less gas so no need for the original 24 gallon tank..... we love it and no stress cracks or transom damage noted...


Edited by NCWhalerOwner on 05/19/17 - 8:28 PM
 
alan heckmamleper
#22 Print Post
Posted on 05/20/17 - 12:14 PM
Member

Posts: 79
Comments: 0
Joined: 04/14/13

For many years now I've read about people putting heavy 4 stroke 90 hp motors on a Montauk 17 and saying their boat handled just great with that heavy motor on the back and I think they truly believe that it does and that's OK. But I can tell you from first hand experience that they are missing out on how this amazing hull does handle and how seaworthy the Montauk really is. I am in total agreement with 44thomas44 in post #12 that a Montauk with a heavy motor plows along at low speeds, rides like a tank, and will take waves over the transom. But with 320 lbs of motor or less it will handle like a sports car. I used to have a Mercury 75 2 stroke and a Mercury 9.9 2 stroke for a total of 386 lbs and I experienced all the above negative tendencies, I re powered with a Yamaha F70 and a Tohatsu 6 hp Sail Pro kicker for a total of 319 lbs and just like 44thomas44 says the boat turned into a Porsche ! I know some will say I don't know what I'm talking about but that is my experience. If I wanted/needed a 90 hp motor on my Montauk 17 it would be an Etec ( ouch that hurt me being a Yamaha man ) but I think the weight issue makes such a huge difference in the handling and seaworthiness even I would get an Etec 90 just to keep the weight down. No chance of me changing from my F70 as I think it's the perfect motor for a Montauk 17

 
Petrus
#23 Print Post
Posted on 05/22/17 - 5:43 AM
Member
Personal Page

Posts: 179
Comments: 0
Joined: 10/08/12

I have the Suzuki 90 4-stroke 2013. 341 lbs and that works fine but I wouldn't put much havier motor on the 17 hull. Etec 90 is 320 lbs I think so not much defferance, but the 4-stroke smells less :).
My opinion is that the boat rides really good, espesially when loaded quite heavy.
With 4 audults and 4 kids it rides really smoth at 25-30 knots.



1997 Montauk 17, Suzuki DF90A
 
Geo
#24 Print Post
Posted on 05/28/17 - 6:53 PM
User Avatar
Member
Personal Page

Posts: 104
Comments: 4
Joined: 11/05/08

I have my 1967 Nauset running a Yamaha 90 hp 2-stroke at ca. 274 lb. I will say however, that my boat performs better when the gas tank is in back next to the battery assuming one person on board. The motor is 2 holes up and using a cupped 3-blade stainless steel Yamaha performance prop with the engine tilted fairly high. I bet the boat would be perfectly balanced if the center console were moved back a few inches, or if there were a slightly (20 lb) heavier motor on the stern. Still, with some wind at the bow and a bit of a chop, my Nauset moves right along as is.


(fixed typo in year)


Edited by Joe Kriz on 05/29/17 - 11:13 AM
 
Jump to Forum:
Bookmark and Share
Today's Date & Time
March 19, 2024 - 12:53 AM
Users Online
Welcome
jme3
as the newest member

· Guests Online: 8
· Members Online: 0
· Total Members: 49,936
Login
Username

Password

Remember Me


Not a member yet?
Click here to register.

Forgotten your password?
Request a new one here.
Top 5 Models Posted
· Montauk 17 1,620
· Sport 13 1,352
· Outrage 18 549
· Nauset 16 396
· Sport 15 363

View all Models Here
Render time: 0.16 seconds Copyright WhalerCentral.com © 2003-2024 82,583,040 unique visits