...looking for information on gas trolling motors...

Saskatoon2005

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I have a 14 foot fiberglass boat with a 40 HP johnson Big Twin Outboard, which I adore...to get around the lake but not to troll with. I am interested in buying a second motor to put on the transom for trolling and was thinking of a 2.5HP 4 stroke outboard...Will that be strong enough to troll for fish with? Is it a smart idea or a waste of money? Any help would be most helpful...Thanks in advance.
 

Silvertip

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Re: ...looking for information on gas trolling motors...

2.5 might be a little small but a 5 HP would certainly be a great addition. Besides, it would get you home fairly quickly if the big engine failed.
 

JUSTINTIME

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Re: ...looking for information on gas trolling motors...

u could also get a electric trolling motor also if u wanted
 

kenmyfam

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Re: ...looking for information on gas trolling motors...

A 4 or 5hp would not only make a good troller but will be a great back up to your main motor.
 

Saskatoon2005

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Re: ...looking for information on gas trolling motors...

wouldn't the weight of a 5 H.P. 4-stroke outboard be an issue on the back with my 1960 40 HP outboard? That is why I was thinking of a 2.5 H.P.
 

JB

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Re: ...looking for information on gas trolling motors...

There is no outboard better for your purpose than the 3 and 4 hp JohnnyRudes of the 70s and 80s.

The Deluxe 4s even offer FNR gearchanges.
 

ondarvr

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Re: ...looking for information on gas trolling motors...

The small single cylinder 2 and 4 strokes are kind of loud and vibrate quite a bit. I just put a 3.3 merc 2S back together and tried it yesterday, it started easy and ran great, but it was louder and vibrated much more than the main motor (60hp Yamaha). We ran it for about ten minutes and it was so irritating we went back to using the big motor. This was on a 16' aluminum boat, the speed was ok for trolling, but I wouldn't want to run it all day. I've used a few different small single cylinder 2 and 4 strokes, some are better than others, but if you plan to use it for trolling, do like JB said and get a 2 cylinder model.
 

Silvertip

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Re: ...looking for information on gas trolling motors...

The small air cooled four strokes (Briggs & Stratton) are air cooled lawn mower motors and will be noisy. A 5 HP 4-stroke from any of the major manufactures are quiet and are much smoother. Weight difference should not be an issue. Electric trollers are an option but you have weight issues there as well. Large deep cycle batteries are not exactly light weight either.
 

Saskatoon2005

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Re: ...looking for information on gas trolling motors...

I have a 1973 Mercury 7.5 Hp but it is way too big to put on the back with the 40 h.p outboard on my 14 foot fiberglass...it is a two cylinder.

I also have a 1955 Elgin 7.5 Hp and it is small enough, but I can't remember if it is one or two cylinder, and I just bought it and it requires some work to get it going...a new ignition coil. What do you think of this one?
 

Silvertip

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Re: ...looking for information on gas trolling motors...

A 2005 six horse Johnson two stroke weighs 58 pounds. Any four stroke is going to be in the 80 plus pound range. I still say 5 HP Johnson two-stroke is ideal if you are worried about weight.
 

Saskatoon2005

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Re: ...looking for information on gas trolling motors...

Yeah, I agree about the weight, but the reason for wanting a 4-stroke is that it is supposed to be better for low speed usage, or so I have read...trolling is better with a 4-stroke then a two stroke, is it not? Again, I originally asked about the 4-stroke 2.5 HP because it only weighs 30 lbs. Now I guess I have alot to think about because even though it is only 30 lbs, it is not as quiet as a two cylinder model would be...fuel efficiency comes into question as well, because my 40 HP outboard likes to drink gas when trolling...like 6 gallons in a 10-12 hour day of trolling...does this sound about right?
 

JB

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Re: ...looking for information on gas trolling motors...

Saskatoon.

One reason I recommend the little twin JohnnyRudes is that they are the smoothest small engines ever. . . bar none. I prefer the 3-4 over the 6-8 because you can get them with integral tanks or with fuel pumps to connect to your main tank. Mine had a switch-valve so I could do either.

It is when you get into 9.5s and up that 4 strokes (2 cylinder only) begin to shine for trolling. But there you are looking at 100lb +.
 

BF

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Re: ...looking for information on gas trolling motors...

Hey Saskatoon...

I have 70's versions of a 2 hp johnson, a 6 hp johnson, and an '80's version of a 15 hp evinrude. Obviously with the age, all are 2 strokes... depending on my mood, I've used each of those for trolling. The hands down best troller of those is the 15 hp. It's the smoothest, and also the quietest. But... it's a bit bigger and heavier than needed. The 2 hp will putt putt (loudly) all day. BUT... not having fwd / N / Rev is a big PITA for fishing. If you're going into the dense stuff, cleaning the weeds off the prop becomes a pain (with no R). The vibration is enough to make your hand go numb if you hold the handle it too long. As someone said above, the noise is at the level of being annoying. So I end up using the 6 hp most of the time. It idles nice and smooth and is handier to move around, but it's louder than the 15 (because of the bigger exhaust outlet on the back of the leg)... it has that "putt putt" sound of the older motors. It's not as loud as my 2 hp though. The 6 willl putt putt all day though without a hiccup... I usually just pop it into neutral if there's a fish on, or into R if there's a snag (which is WAY more convenient than the 2 hp with no R or N). So I fish for hours without having to shut it down or restart it. A 5 gallon tank lasts a LONG time with the 6 hp (mutliple weekends).

So, yes I agree with what's said above, a small twin cyl johnyrude... but I'd add that IMHO I'd put more importance on it having a full gear set over whether it needs an external tank or not.

At one point I did have a 70's version of the 'rude 4 hp which ran very nice, but I ditched it because of the lack of reverse. It had the weedless bottom end, so at least it didn't pick many up.

Plus, if you buy a 70's-80's little johnyrude, you can spend the money you saved on extra goodies/toys for the boat.
 

Saskatoon2005

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Re: ...looking for information on gas trolling motors...

Excellent, and I am definately sold on the idea of an older 2 cylinder small jonnyrude outboard. Like I said, I have a 1960 Johnson 40Hp which I love. Easy to maintain, and the kids love to go fast when we go for an evening of boating shortly before putting them to bed. Nothing then fresh air before kids go down (makes them fall asleep much faster). Anyways,thanks again everyone for your input and I will look for both two cylinder, F/N/R gears and a fuel pump equipped for external tank.
 

River - Runner

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Re: ...looking for information on gas trolling motors...

Saskatoon,

Take your time in deciding what to do. There's more to consider if your going to use a secondary or trolling motor for fishing. Even if you have a just right and great motor, it's important to have the right setup.

Many fishermen setup their boats for these motors and they end up not really using them or not using them to their potential. It's because of the style of the boat, including if the boat is a remote or tiller steer, or the room on the transom, your seating, or the position your in when using it. It could be just one or all that isn't right. The motor then ends up as inconvenient or a hassle to use, or it's awkward to use, or difficult to operate. They then go back to the primary outboard for trolling, as it's just best for them or they compromise, using the trolling motor just once in awhile.

I've been there. I now use a utility boat and it's the best for me with a trolling motor. It's very versatile. Many other boats also work well, some better than others. A boat has to track well to be a good performer, if it doesn't you can compensate by back trolling.

It also makes a difference where and how the motor is used, as on lakes or rivers. A secondary or trolling motor on a river should be highly maneuverable, with fast ease of use. Sometimes you may have to keep one hand on the motor at all times when using it, because of the current and current breaks, eddies, water obstructions, wind, etc. You are also on the motor more for boat control, the smaller and lighter the boat is.

When the setup is right you want to use your motor and it's a great tool.
 

Saskatoon2005

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Re: ...looking for information on gas trolling motors...

Thanks River-Runner for your insight, I'll take that into account before I decide. I really am looking for something a little easier on the gas when I am out fishing. I fish smaller lakes (scared my boat would fail on a big lake), and enjoy the power of my 40 Hp outboard. I am just curious about better fuel effiency while trolling around the lake. Thanks again...
 

Silvertip

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Re: ...looking for information on gas trolling motors...

Just for a comparison, 6 gallons of fuel in your 40 HP in a 10 - 12 hour day amounts to about 1/2 gallon per hour. I have in my formerly nicotine stained fingers, figures for a 70 and 90 HP Yamana motor and at 1000 RPM the 90 HP burns 0.9 gallons/hr and the 70 burns 0.6 gallons per hour so it appears your engine is not exactly a fuel hog.
 

Saskatoon2005

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Re: ...looking for information on gas trolling motors...

I know that it is not too bad, but I would like a small motor that would last a couple of weekends on one take of gas, just using it for trolling, Like a smaller motor a 4-6 Hp, two cylinder, 2 stroke.
 

iwombat

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Re: ...looking for information on gas trolling motors...

One thing to remember about a 4-stroke kicker is you won't be choking on 2-stroke oil all afternoon while trolling. That's rarely an issue at full throttle on your main. However, at troll speeds with a 2-stroke you'll get smoke back in the boat if the wind isn't favorable.

Just something to consider.
 

Saskatoon2005

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Re: ...looking for information on gas trolling motors...

I have trolled all day using my forty horsepower and yes in the early mornings when there isn't much breeze, it can give you a headache and make you light headed, but by afternoon, the breeze usually picks up and you don't even notice it anymore....Yeah a fourstroke wouldn't have that problem I agree, but I do love the smell of a two stroke, just not so much in the early morning.
 
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