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Author Topic:   MONTAUK: Four-stroke Power
flawton posted 08-11-2004 07:19 PM ET (US)   Profile for flawton   Send Email to flawton  
A good friend is beginning the process of stripping his 1986 MONTAUK 17, and the rehab will include a re-power. He is adamant about a four-stroke power plant and has mentioned purchasing a 90-HP Yamaha four-stroke, which I consider a behemoth at 360 lbs. I have been trying to talk him into the Suzuki 70-HP, which has peaked his interest, but he has a concern that it will not be enough power to pull a slalom skier. Does the Suzuki have enough power to pull a skier? He is rebuilding the boat with the thought of it being a boat for him and a boat for his kids to ultimately learn the lowcountry of SC.

Your opinion is greatly appreciated, thanks

ryanwhaler posted 08-12-2004 09:36 PM ET (US)     Profile for ryanwhaler  Send Email to ryanwhaler     
My dad just bought a Montauk with a 4 stroke 70 hp Suzuki. I don't think he will ever use it for water sports, but I'll let you know what I think once I get out on it.

I have read top end is a few MPH under 40. With the right propeller I don't think skiing would be a problem, but I currently don't have any experience with this set up.

rubadub555 posted 08-13-2004 12:47 PM ET (US)     Profile for rubadub555  Send Email to rubadub555     
Our 1980 Montauk with 1999 Suzuki 85-HP 2-stroke yanks up skiers easily. I have a Doel-fin, too, that may affect the quick-planing lift.
detra posted 08-17-2004 12:07 PM ET (US)     Profile for detra    
I've got a 1973 NAUSET with a 2002 Suzuki DF-70.. Though not an ideal performance skiing boat, it will pull up a slalom skier no problem. I weigh 175-lbs. and it pulls me.
jimh posted 08-19-2004 07:48 AM ET (US)     Profile for jimh  Send Email to jimh     
[Changed TOPIC; was (something else).--jimh.]
Legobusier posted 08-19-2004 10:34 AM ET (US)     Profile for Legobusier  Send Email to Legobusier     
Aren't you only talking about a 25# difference between the 90 and 70 weights. I think the difference in weight will be more than overcome by the extra horsepower of the 90. I have a Honda 90 on my Montauk and love it. It's heavy, but I've noticed no ill effects. Fuel tank under the RPS and battery in the console to compensate - all is good.


mikeyairtime posted 08-20-2004 03:26 PM ET (US)     Profile for mikeyairtime    
Get the 90. My 170 with Merc 90 4 stroke barely hits a full 36 mph (mens slalom speed) when I'm behind it doing hard turns with 3 people on board.
dogfish2 posted 08-23-2004 01:49 AM ET (US)     Profile for dogfish2  Send Email to dogfish2     
I suggest you check out the 115 4-stroke EFI Merc, especially if you're going to be pulling skiers, etc. The motor is very smooth and very good low end torque also. The weight is the same as the 90 4-stroke, 386 #.
Bigshot posted 08-23-2004 12:38 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
I can pull a slolom no problem but if skiing is a major priority, go with a 90 or even better the 115.
flawton posted 08-24-2004 09:52 PM ET (US)     Profile for flawton  Send Email to flawton     
jimh, thank you for getting this tread back on topic.

Thanks to those of you that have responded, i will pass the info along this weekend at the 3rd annual blue crab competition on the May River, Bluffton, SC.

It looks as though this projects' timetable has been moved up a couple of months. This montauk was put on its davit the day before the remnants of Charley was supposed to hit Savannah/Bluffton. Well as you all know, Charley spared this area but the starboard lifting eye pulled through the fiberglass and the resulting yank snapped the stern davit cable. The bow lift eye held so the boat was hanging by the bow eye (think perpendicular to the h20). Well the tide came in and submerged the 86, 90 hp johnson for about an hour and it is done (its borrowed time is up).

Im sure I will have some more questions for you as the rehab progresses.

Once again, Thanks

jj69xxl posted 08-31-2004 01:56 AM ET (US)     Profile for jj69xxl  Send Email to jj69xxl     
I drive my montauk 17 with one yamaha 115 HP fuel injected to 4-stroke super and only approx. 8-10 L/h

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