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Author Topic:   1979 Montauk Classic Whaler
whalerlover posted 03-11-2002 12:12 AM ET (US)   Profile for whalerlover   Send Email to whalerlover  
Question-sell the 1979 great condition buy new Montauck2002!Or put a new Merc 90 2 stroke on her and keep the classic..any suggestions?
JBCornwell posted 03-11-2002 12:41 AM ET (US)     Profile for JBCornwell  Send Email to JBCornwell     
No brainer, Whaler Lover.

Keep the Classic, but if you are going to save 18 or 20 grand give your boat something better than that.

The Merc 90 2 stroke is a decent engine, but a poor choice compared to an EFI 4 stroke, or even a carbed 4 stroke. My son has a Merc 90 2 stroke on his Montauk, I have a Suzi DF70 on my Montauk. There is no comparison, except that his boat is a couple of miles faster at WOT (41 vs 38.5). In every other way, mine is superior.

Test drive a Merc 60 EFI 4 stroke and a Johnson/Suzuki DF70 EFI 4 stroke on similar size/weight boats. You will be hooked forever.

Red sky at night. . .
JB :)

scottfarm posted 03-11-2002 06:17 AM ET (US)     Profile for scottfarm  Send Email to scottfarm     
The merc 90 should do 50 mph on a montauk if it's proped right and set at the right height on the transom.
andygere posted 03-11-2002 01:34 PM ET (US)     Profile for andygere  Send Email to andygere     
Keep the '79 and repower. From a utility standpoint, it does everything an '02 does and you already own it. Besides, there's none of that classic feeling in bleach white gelcoat and starboard console doors. As far as 50 mph with a 90, mmmm not. Try 45 if everything is really dialed in.
JBCornwell posted 03-11-2002 03:52 PM ET (US)     Profile for JBCornwell  Send Email to JBCornwell     
Hi, Andygere.
With a carefully selected VERY optimistic pitot tube speedo, maybe. Never with GPS.

My son's engine has been up and down like an elevator and tried four props. It may be an individual engine thing, but he got 41.5 on one setup while porpoising like crazy. He settled for a 19" SS Merc prop. 41 is it.

It drives him crazy that if he has one more adult aboard than I do he can't run away from the Suzi.

Red sky at night. . .
JB :)

andygere posted 03-11-2002 07:28 PM ET (US)     Profile for andygere  Send Email to andygere     
I'm feeling pretty good now....I get a max of 38 mph on my GPS under perfect conditions....with a '79 Johnson 85 and 17" pitch aluminum prop...motor on the lowest tweaking but for the trim switch...Gotta love the old gas hog!
Landlocked posted 03-12-2002 09:51 AM ET (US)     Profile for Landlocked  Send Email to Landlocked     
You guys are just doing this to screw with my head. right?


Bigshot posted 03-13-2002 10:51 AM ET (US)     Profile for Bigshot  Send Email to Bigshot     

We are reality, buy 4 strokes or raep the consequences.......hahahhahahhaha!

Landlocked posted 03-13-2002 10:00 PM ET (US)     Profile for Landlocked  Send Email to Landlocked     
Maybe I should go away for a while.... Can't handle the stress. Anyone know the number for 2-stroke anonymous.


whalerron posted 03-14-2002 10:03 AM ET (US)     Profile for whalerron  Send Email to whalerron     
Landlocked, while you are away, go visit your local Merc and Johnson dealers. While there, price the 2 stroke and 4 stroke engines. For those of us on limited budgets and who want 90s, the answer is right there next to the $ symbol.

The 2 stroke Merc and Johnson are both nice motors for the money.

Bigshot posted 03-14-2002 10:57 AM ET (US)     Profile for Bigshot  Send Email to Bigshot     
No doubt Ron but do some shopping and you will be amazed. Like I said just ssaw a New 2000 or 01 100hp Yamaha 4 stroke in NJ for $6195. Another place had Merc 90 4's for $5800. Then again they had a Force 90(new) for $3400.
Landlocked posted 03-14-2002 12:11 PM ET (US)     Profile for Landlocked  Send Email to Landlocked     
Limited budget is my middle name - precisely why I just bought a 2-stroke Merc 90.

(Tried to go away - can't - perhaps I should be looking for continuous wave anonomous)


Ed Z posted 05-27-2002 10:07 AM ET (US)     Profile for Ed Z  Send Email to Ed Z     
I realize this is an old post, but after reading it I felt a response was warranted... Dick Fisher was on the right track when he produced the Bearcat 85 hp (Coventry Climax FWB motor)... It weighs in at 280# and is what I consider a perfect match for my 1969 Nauset... I can troll all day long (at 600 RPM) and get 40 minutes out of a Quart of gas... After 32 years of use it still runs great (fired up and one revolution of the crank this spring)... I too was looking into repowering (Bearcat belongs in a museum) but after intensive investigation I was unable to identify anything superior on the market (weight wise, fuel economy wise, or design wise)...
Don Fisher posted 05-27-2002 01:19 PM ET (US)     Profile for Don Fisher  Send Email to Don Fisher     
I just had the same dilemma...I chose to repower my 1980 calssic Montauk with a Bombardier built direct injected engine. I'm glad I kept my classic!
masbama posted 05-29-2002 10:05 AM ET (US)     Profile for masbama  Send Email to masbama     
I re-powered my 77 Montauk with a 2002 Bomb Johnson 90. Very pleased. Not all 4 strokes are great. I have heard problems with the Merc 90 4 stroke. If you go with a 4 stroke-get it fuel injected. (And hope you have no problems-major bucks to fix)
whalerron posted 05-29-2002 11:45 AM ET (US)     Profile for whalerron  Send Email to whalerron     
masbama....that Johnson 90 is a sweet motor. I have 9 hours on mine so far and it does better on gas than my old 1975 70 hp Johnson did. Anywhere under 4300 rpms the boat literally jumps when I hit the throttle. The 4 strokes are sweet engines too but they are to heavy and pricey for my blood. The Johnson 90 weighs 319 lbs and I got mine with prop, control, and cables for $5200. I can't believe you would get a 4 stroke 90 for that kind of money.

By the way, what kind of gas mileage are you getting with your 90?

- ron

gvisko posted 05-29-2002 06:00 PM ET (US)     Profile for gvisko  Send Email to gvisko     
suzuki 70hp 4 stroke fuel injected on my
montauk 38 mph gps you cant here it runing
and starts like a car everytime and
i got 6yr warrenty gvisko
masbama posted 05-29-2002 11:04 PM ET (US)     Profile for masbama  Send Email to masbama     
Ron-I agree-I love my motor. I have about 20 hours on her and you will love how she runs after double oil time is up. I have yet to figure out the mileage but I will soon. It uses a bit more than my 1990 Johnson 60 but not that much more. Did you get the $270 rebate?
whalerron posted 05-30-2002 08:48 AM ET (US)     Profile for whalerron  Send Email to whalerron     
Bigshot mentioned that it's not surprising that the new 90 does better on fuel than the old 70 because of changes in the way the fuel mixture flows into the cylinders.

I didn't buy a 2002. So, I didn't get the rebate. I bought a new 2001 in February of this year and that gave me a pretty fair deal on the package. As for mileage, so far I have been getting between 4.5 and 5 mpg. I don't know how good these numbers are though because it has been rough on every trip and I haven't been able to do alot of fast planing.

- ron

AllanR posted 06-08-2002 10:44 PM ET (US)     Profile for AllanR  Send Email to AllanR     
If I was ready to repower my Montauk, I would probably go for a 4 stroke, probably Yamaha. But my 1994 Johnson 90 2s runs quiet and smooth, and has been bulletproof so far.I just service it regularly. It is paid for and I can run it all day on 12-20 gallons of gas, depending on how I push it. Even if the 4 stroke used 1/2 the gas, it would take a decade to pay for itself. I will keep the Johnson until it starts giving me serious trouble. I hope that it never does.
14_blast posted 06-17-2005 10:42 PM ET (US)     Profile for 14_blast  Send Email to 14_blast     
I know this thread is very very old by now. But I just have to ask a question regarding this thread. I have a 1978 Montauk and my motor is fried. I want to buy a new Merc 90 4-stroke; however, the guys at the Whaler shop said it'll be too heavy and suggested that I get a Merc 60 4-stroke.

What is the speed for both engines WOT on a 1978 Montauk? OH yeah, he said to forget adding a kicker if I get the Merc 90 4-stroke.

What are your thoughts, anyone?

The Chesapeake Explorer posted 06-19-2005 01:41 AM ET (US)     Profile for The Chesapeake Explorer  Send Email to The Chesapeake Explorer     
Merc 90 2 stroke Johnson 2 stroke Yamaha 2 stroke good to go as long as you can buy them. E Tecs & fuel injected 2 stroke motors seem like they have problems, 4 strokes are heavy lots of money, 60 HP Yamaha or other may be good 4 stroke for a classic 17 Whaler.
SWSportsman posted 06-19-2005 08:57 AM ET (US)     Profile for SWSportsman  Send Email to SWSportsman     
I went through the Montauk-repower exercise a 3 years ago and ended up with a Yamaha C90 two-stroke. Couldn't have made a better choice! It quickly became obvious that anything over 300 pounds would be too heavy and this eliminated all the four-strokes in the appropriate horsepower range at that time. As a two-year-old leftover at the time, the cost was LESS THAN HALF of the four stroke.

All that said, I would have bought a four-stroke if the weight had been the same and the price close, simply for the quieter cleaner running aspects. I would not even consider hanging a huge weight on the back of my boat and over-paying at the same time.

Landlocked posted 06-21-2005 10:24 AM ET (US)     Profile for Landlocked  Send Email to Landlocked     
I'm still here and still happy with my Merc 90 2 stroke.

I'm still turning the 21 pitch aluminum merc prop that came with my motor.

The fastest I've seen is 41.5 mph gps alone with light load and at 5,250 rpm. Conditions must have been perfect because I haven't been able to replicate recently. With what I would consider an average load and average conditions I can usually count on between 39 and 40 at 5,250. Perhaps I should drop the prop to a 19" and get the RPM's up closer to 5500 but not really worth the effort or expense to me. The boat rarely sees full throttle and when it does, 39 or 40 is more than sufficient and frankly a bit unstable feeling at times.

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