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Author Topic:   MONTAUK 17 Auxiliary Motor

RENTER posted 03-15-2009 04:42 PM ET (US)
[I plan] to install a small kicker or get home motor on my 17 Montauk, and I would appreciate some feed back from anyone with some experience as to size and horsepower. The MONTAUK 17 will be used some in the bay and offshore up to 20 miles or so in the Gulf of Mexico. I am down sizing from a large Grady White and have had much prior experience with Whalers.
elaelap posted 03-15-2009 05:59 PM ET (US)
Six equines, mounted directly to the transom, are plenty to push your sweet Montauk right along, RENTER.
Tuco
elaelap posted 03-15-2009 06:13 PM ET (US)
Four hp will do as well for your 16'7" hull, and in fact I'm now using a tiny 27 lb 2 hp aircooled Honda four stroke on my substantially-lighter 1987 15 CC. I use that boat in the San Francisco Bay and in good weather off the coast of northern California.
Ablewis posted 03-15-2009 06:43 PM ET (US)
There are a wealth of posts on this topic, just search by "Montauk kicker". I ended up going with a 4-stroke 9.9 h.p. honda. A smaller engine would work just fine for trolling, but I also wanted a motor that could get me back to shore if the main engine quit. You will need a 20" shaft, and when others say "mount directly to the transom", make sure you bolt it to the transom rather than clamping it. Needless to say, I learned the hard way.
You can also consider connecting the two motors via a threaded rod so that you will be able to steer the kicker with the steering wheel. I have some pics of my installation here:
http://s145.photobucket.com/albums/r214/ablewis007/ kicker%20motor%20installation/
Andy
Kencvit posted 03-15-2009 07:27 PM ET (US)
http://continuouswave.com/ubb/Forum8/HTML/003091.html
elaelap posted 03-15-2009 08:21 PM ET (US)
Just one factor to consider--your kicker won't get your boat up onto plane, God knows, so we're in effect talking about the little motor pushing a displacement hull with a limited hull speed, which is between 5 & 6 knots on a good day with a 16'7" hull, especially considering that the formula (~1.4 times the square root of the waterline length = speed in knots) uses the waterline rather than the overall length of one's craft. Sure, extra power would be real nice if you're fighting your way home from 20 miles offshore against adverse breeze, current and waves, but you still ain't gonna go any faster in average conditions with a 9.9 hp kicker rather than a 6 or 4 hp one.
For me, I view a kicker as another necessary redundancy for anyone who uses a small single-engined motorboat on the ocean or on large lakes, like my back-up handheld VHF and handheld GPS, and really hope I never need to use it in a jam. But it sure helps me sleep well at night knowing it's there, and keeps me a little more relaxed when I'm fishing or cruising close to a rocky lee shore. I've yet to have had any of my Whalers' main motors fail (though once I wrapped a bunch of 20 lb test mono around my prop shaft and had an interesting half hour or so clearing the stuff as I drifted closer and closer to a rocky headland).
Anyway, in answer to your question, RENTER, a motor as small as 4 hp is perfectly adequate offshore for a Montauk IMO, and there's sure nothing wrong with a larger kicker like an 8 or 9.9 if you don't mind all that extra weight all the way aft. My boat partners--CW members Matt/placerville and Warren/WT--and I are perfectly satisfied with our 6 hp Nissan four stroke as a kicker on our much heavier prototype Revenge 19 with a one-of-a-kind full cabin, BTW. That little motor gets our boat up to its hull speed without any problem, at least on calm days.
Tony
WT posted 03-15-2009 08:55 PM ET (US)
Get as much horsepower for the weight. So probably a 6 instead of anything smaller. Also get a high thrust prop for the kicker.
Don't let a kicker give you a false sense of security. And forget about going "uphill" if swells are greater than 4-5 feet.
Tony, our "prototype" is 21 feet. :-)
Warren
elaelap posted 03-15-2009 09:58 PM ET (US)
Yikes, Warren! That means that maybe I've been misunderestimating other lengths of a more personal nature all these years. Hmmm...better to underestimate than the opposite, I guess. Keeps ya from getting a swelled, uh, uh, head.
Tony
RMBW posted 03-16-2009 10:25 AM ET (US)
My friend and I have yamaha 8HP-4 strokes with tiller handleon or 16-7" Whalers. We use a remote control to adjust speed and the 8 hp is tied to the 90hp with a tie bar for steerage, great for trolling Lake Michigan.
jimh posted 03-16-2009 09:19 PM ET (US)
Move this discussion to PERFORMANCE by reposting there.

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Author	Topic: MONTAUK 17 Auxiliary Motor
RENTER	posted 03-15-2009 04:42 PM ET (US) [I plan] to install a small kicker or get home motor on my 17 Montauk, and I would appreciate some feed back from anyone with some experience as to size and horsepower. The MONTAUK 17 will be used some in the bay and offshore up to 20 miles or so in the Gulf of Mexico. I am down sizing from a large Grady White and have had much prior experience with Whalers.
elaelap	posted 03-15-2009 05:59 PM ET (US) Six equines, mounted directly to the transom, are plenty to push your sweet Montauk right along, RENTER. Tuco
elaelap	posted 03-15-2009 06:13 PM ET (US) Four hp will do as well for your 16'7" hull, and in fact I'm now using a tiny 27 lb 2 hp aircooled Honda four stroke on my substantially-lighter 1987 15 CC. I use that boat in the San Francisco Bay and in good weather off the coast of northern California.
Ablewis	posted 03-15-2009 06:43 PM ET (US) There are a wealth of posts on this topic, just search by "Montauk kicker". I ended up going with a 4-stroke 9.9 h.p. honda. A smaller engine would work just fine for trolling, but I also wanted a motor that could get me back to shore if the main engine quit. You will need a 20" shaft, and when others say "mount directly to the transom", make sure you bolt it to the transom rather than clamping it. Needless to say, I learned the hard way. You can also consider connecting the two motors via a threaded rod so that you will be able to steer the kicker with the steering wheel. I have some pics of my installation here: http://s145.photobucket.com/albums/r214/ablewis007/ kicker%20motor%20installation/ Andy
Kencvit	posted 03-15-2009 07:27 PM ET (US) http://continuouswave.com/ubb/Forum8/HTML/003091.html
elaelap	posted 03-15-2009 08:21 PM ET (US) Just one factor to consider--your kicker won't get your boat up onto plane, God knows, so we're in effect talking about the little motor pushing a displacement hull with a limited hull speed, which is between 5 & 6 knots on a good day with a 16'7" hull, especially considering that the formula (~1.4 times the square root of the waterline length = speed in knots) uses the waterline rather than the overall length of one's craft. Sure, extra power would be real nice if you're fighting your way home from 20 miles offshore against adverse breeze, current and waves, but you still ain't gonna go any faster in average conditions with a 9.9 hp kicker rather than a 6 or 4 hp one. For me, I view a kicker as another necessary redundancy for anyone who uses a small single-engined motorboat on the ocean or on large lakes, like my back-up handheld VHF and handheld GPS, and really hope I never need to use it in a jam. But it sure helps me sleep well at night knowing it's there, and keeps me a little more relaxed when I'm fishing or cruising close to a rocky lee shore. I've yet to have had any of my Whalers' main motors fail (though once I wrapped a bunch of 20 lb test mono around my prop shaft and had an interesting half hour or so clearing the stuff as I drifted closer and closer to a rocky headland). Anyway, in answer to your question, RENTER, a motor as small as 4 hp is perfectly adequate offshore for a Montauk IMO, and there's sure nothing wrong with a larger kicker like an 8 or 9.9 if you don't mind all that extra weight all the way aft. My boat partners--CW members Matt/placerville and Warren/WT--and I are perfectly satisfied with our 6 hp Nissan four stroke as a kicker on our much heavier prototype Revenge 19 with a one-of-a-kind full cabin, BTW. That little motor gets our boat up to its hull speed without any problem, at least on calm days. Tony
WT	posted 03-15-2009 08:55 PM ET (US) Get as much horsepower for the weight. So probably a 6 instead of anything smaller. Also get a high thrust prop for the kicker. Don't let a kicker give you a false sense of security. And forget about going "uphill" if swells are greater than 4-5 feet. Tony, our "prototype" is 21 feet. :-) Warren
elaelap	posted 03-15-2009 09:58 PM ET (US) Yikes, Warren! That means that maybe I've been misunderestimating other lengths of a more personal nature all these years. Hmmm...better to underestimate than the opposite, I guess. Keeps ya from getting a swelled, uh, uh, head. Tony
RMBW	posted 03-16-2009 10:25 AM ET (US) My friend and I have yamaha 8HP-4 strokes with tiller handleon or 16-7" Whalers. We use a remote control to adjust speed and the 8 hp is tied to the 90hp with a tie bar for steerage, great for trolling Lake Michigan.
jimh	posted 03-16-2009 09:19 PM ET (US) Move this discussion to PERFORMANCE by reposting there.