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ContinuousWave: Whaler Performance
Opinions or Montauk re-power
|Author||Topic: Opinions or Montauk re-power|
posted 05-19-2002 12:25 PM ET (US)
Asked a few members off list about this already but thought I'd throw it out to the list for suggestions. After carefully concidering my needs & uses I'm looking at the possibility of re-powering my Montauk. Boat came rigged with a Merc 90HP 4 stroke. It's a nice engine and runs well, but I've come to feel that this is a bit to much motor/weight. Also my needs for the boat are changing somewhat. Currently I fish mostly larger fresh water lakes here in central Mass and occaisionally have to pull the nephews around on tubes or maybe at some point skis. That was fine for my current setup. However I want to start fishing a lot of the smaller ponds that have great fishing but are shallow, with rocks and stumps where I don't want to use my main engine & Quabin resavoir where there is a 20HP limit. I also want to get out into the ocean at some point and would just feel better having an aux engine. I'm looking to replace current Merc 90hp 4S at 386# with a lighter main engine and add a kicker.
Stopped by the local Yamaha dealer on the way home and discussed what I was trying to do. They came up with what looks to be a good overall combo. A Yamaha 90hp oil injected 2 stroke and a Yamaha T8 "hi- thrust" 8hp 4 stroke for the kicker. The 90 2S weighs 261lbs, the kicker 99lbs giving a total weight of 360lbs. Approx. 26 lbs lighter than what I have now. They suggested the T8 hi-thrust 4 stroke for several reasons;
The only other thing to work out would be steering. I want the ability to steer the kicker from the helm when I want to keep main motor completely out of the water.
Other options in same weight class might be Merc 60hp 4S bigfoot but don't know if it would work as well for tubing/skiing? And I like having the motors & controls match. Appreciate any advice and sorry for the LONG post, but were talking a few $$ so I want to run this by you more experienced owners out there to help me get it right!
posted 05-19-2002 02:20 PM ET (US)
I have a 50HP Honda 4 stroke at 212lbs.Ilove the reliability and fuel economy. Ican go out for 5 or 6 hrs on 6 gallons of fuel.My dad has a 70 HP Yamaha 2 stroke and I will admit it has great hole shot and torque compared to the Honda. However out here on buzzards bay the extra top speed of the Yamaha only gets used early am when the water is flat. Maybe the 60 bigfoot or 60 Yamaha 4 stroke is the choice,waterski duty aside.
|John from Madison CT||
posted 05-19-2002 04:36 PM ET (US)
IMHO, you don't need that heavy high thrust kicker for a Montauk, which is a light boat.
I have a 5hp 4 stroke Tohatsu, which weights about 60 lbs. It pushes the boat easily to 5 knots. Over that speed and you start running into diminishing returns real fast and displacement speed issues.
The Tohatsu only burns 1/2gal /hour at WOT, which you don't use.
BTW, my regular motor is a Yamaha 90, which may not be the fasted Montauk option, but all in all, it's size, weight and Yamaha reliability make it the #1 choice in my book.
posted 05-19-2002 05:13 PM ET (US)
Do you think the hi-thrust T8 is overkill concidering the fact that I proably will have to run it WOT when used as my primary engine? Yamaha also makes a 8hp 2 stroke at 60lbs. This was my first choice until dealer pointed out all the advantages of T8 I mentioned. Nice to hear your happy with Yam 90 as primary engine.
posted 05-19-2002 05:22 PM ET (US)
Whatever kicker you decide on, I would still carry along a portable fuel tank as an alternative fuel supply.
What few problems I have had on the water were always fuel-related. Good to have an independent supply on hand which can run either motor.
My rig is Montauk/Yamaha90/Nissan9.8.
posted 05-19-2002 08:36 PM ET (US)
Barnet will they even let a boat with over 20 hp on Quabbin regardless of having a smaller kicker too ?
posted 05-19-2002 08:53 PM ET (US)
You have to pull the prop off of the large motor. Restrictions are up to 20hp for 2 stroke or 25hp for 4 stroke.
posted 05-20-2002 03:05 PM ET (US)
I would do a 5 or 6hp. Anything bigger is probably a waste. On a 18-22 the 8-10hp would be fine.
posted 05-20-2002 05:14 PM ET (US)
I have a Toahatsu 4hp 4 stroke as the kicker on my Montauk. It has the same powerhead as the 5 & 6 hp 4 strokes except in has an integral fuel tank - something I really wanted to free some deck space. It is more than adequate for the Montauk and gets great fuel economy. I carry a 1 gallon gas container to refill. It is easily placed out of the way. The 4hp also has the fitting for an exteral hook-up if you so desire.
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