Team_Dougherty

I would be careful using different AH batteries in parallel. the smaller AH battery can be over discharged before you know it. Even though the bigger AH battery will provide most of the amperage, when the smaller one is discharged, current will still come from the smaller battery. If you have two different AH batteries in series the total capacity is that of the smaller battery. When it is discharged the device that is being powerd will most likely stop working from low voltage. There is little chance of over discharge from the smaller AH battery. Ideally when you are grouping batteries, series or parallel, they need to be the same AH rating. I would go as far as saying they should be the same type. AGM, wet cell etc...

They say the optima line of batteries, they look like a 6 pack, are very vibration resistant.

Yes it will work. It works the best if both batteries are the same AH rating.

I agree try it in both places to see how your boat handles the load. My guess is it will be the front. Most important make sure it is secure. Also of importance, if the battery is in the back and your electric motor is in the front make sure your wires are big enough to handle the current.

The trolling motor should be hooked up to a deep cycle battery. Even if it his hooked up to an outboard with an alternator. I would get the biggest you can afford and fit in your boat. I have a AC Delco M27MF that has served me well for many years. A lot of people would recommend using two batteries one for your outboard and one for your trolling motor. The reasoning is a regular starting battery can not handle the deep discharge a trolling motor would give it. The other is a deep cycle battery can not handle the current a starter can draw from it. I do not think your 25 HP starter would draw more current that your trolling motor on high. As mentioned above I have the M27MF battery. I used it for my trolling motor, a 47# 12V Minn Kota, and my 40HP Evinrude electric start. My outboard has a 5 amp charge circuit. I can use the trolling motor all day and still have enough power to start the outboard. I do not rely on the 5 amp charge circuit to keep the battery charged. I always hook the battery up to my 10 amp charger at night and when the boat is not being used. I can go for a week in Canada on the lake fishing all day running all over and have never been left with a dead battery. I do keep it on the charger when the boat is not in use.

a rule of thumb is a two cycle outboard will use 10% of it's HP in fuel per hour at WOT. So your 50HP will use 5 gallons per hour @ WOT. go here make a few choices and you should be able to get close to your usage. http://www.yamaha-motor.com/outboard/products/perfbull.aspx?ls=outboard here is a 50 on a 17' boat http://www.yamaha-motor.com/assets/products/otb/bulletins/bulletin_2stroke_hpmidport_al_str-176xt-50tlr.pdf

Here are some FAQs to help answer your question http://www.minnkotamotors.com/support/faq.asp?pg=general&lp=gb

I would try the for sale section on this site or www.craigslist.org

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Looking at the picture, other than no back fishing deck, I do not see why it wouldn't. It should make a good stable boat. http://www.keywestboatsinc.com/images/boats/1520cc.jpg

Just because your fish finder shows fish doesn't mean you will catch them . I use my Fish Finder to show me where the fish are hanging out. Then I try fishing those depths. I usually fish in the local river that averages around 5'. my Fish Finder has a 20 degree cone so I am usually looking at a 1.5' diameter circle. Not much. So I rarely use it to look down in the river. but it does have another transducer that shoots parallel to the water surface. So I use it to look towards the bank as I work the shoreline.

Another thought, The right of the fish finder screen is what is under the transducer at that second. as it moves to the left that is what was under the transducer. the slower the scroll speed the farther back what you are looking at is. If you are sitting still you are always looking at the same spot on the bottom. If you are moving, at all, you are looking at what you past over. A combination of scroll speed and boat speed will dictate how far back you are looking.

The fish are located under the transducer. if a fish show up on the screen it is somewhere within the cone. It is really hard to tell exactly with a 2d fish finder. If you look at those sites they tell you have big of an area of the bottom you are looking. If you are in 20 feet of water with a 20 degree cone your depth finder is looking at a circle 6' in diameter. the fish you can see are in the cone. if the fish is at the bottom it is within that 6' circle. if it is in the middle, 10', it is within a 3' circle. all from the center of the transducer.

read here for starters http://www.fishfinder-store.com/howfifiwo.html the same kind of thing http://www.bystore.org/how-fish-finders-work.html

These work well. A little pricey though http://www.boatersworld.com/product/479740557msk.htm

I have a bottom line fishing buddy 4200. it works very well. All one unit very easy to setup. http://www.cabelas.com/prod-1/0012236018201a.shtml

Something to investigate. Do you have a tachometer on the outboard? what RPM does it turn? If it does to turn 5500 RPM at WOT you may need to change the prop to a lower pitch.

I have had no problems, so far, running the 10% ethanol gas in my outboard. I do not have a water separator because I have a portable tank and can clean it very easily if water got in there. I would use a water separator if I had a built in tank. That is a good idea any way since a boat is around a lot of water. A good read about water in fuel tanks. http://www.yachtsurvey.com/myth_of_condensation_in_fuel_tanks.htm

Last summer I was night bank fishing for catfish with 3 Friend on lake ontelaunee. I was just sitting in my chair minding my own business when It felt like i got shot in the face. I yelled, I don't understand was that? I put my hands up to my face and could feel blood all over. My friends came over to see what I was fussing about. They where shinning flashlights on me and could see my face cut from the bottom of my nose to the top of my lip and it was deep. What happened was on of the guys I was fishing with got snagged as he was trying to pull it out his 1 oz. lead sinker flew back hitting me square in the face. I did not even see him doing him trying to free it, it was so dark. I did not even have a chance to put my hands up to deflect it.

I personally think one of the bottom line fishin buddy model would work better it is all contained in one unit. http://www.bottomlinefishfinders.com/site/html/htmlsite/bl/products.htm

Try Here www.smalloutboards.com

You should not use stating fluid on a two cycle motor. There is no lubricant in it and you can wash the oil off of the bearings and cause premature failure. if you want something similar use your regular 2 cycle fuel in a windex type squirt bottle.

I agree with what some others have said. I have an older s10 blazer, with 180,000 miles, that is the boat tower. It does its job very well. I bought a saturn for the daily driver for the mileage. Both vehicles are paid off so the only "extra" cost if for insurance on a '91 blazer. Very cheap. If you can afford it got with the "extra" vehicle. It does come in handy when the daily driver needs inspection or other stuff done do it.

I am with HPBB. My batteries are on the charger whenever I am not using the boat. I, as well, have two boats. I do not have an on board though, I use a fully automatic 75/12/2 amp Schumacher charger for my big boat. on my electric only lake boat. I bring it to full charge using the Schumacher and once it is there I have a 2 amp maintainer I keep it on. I only use that battery about six times a year. It is always ready to go when needed and has yet to let me down.

That will work as well. You are just getting your 12v from the battery on the right. where I drew the diagram with it getting the 12v from the center. Like George said you can get 12v by connecting to just one of the batteries. It does not matter which one. I do not like the idea of the common ground because if you accidentally connect the red wire from your outboard, or any other 12v item, to the + of battery 2 you will send 24v to it burning out any electronics in it. In my first diagram I have two grounds one for the 36v and one for the 12v. That is why the second battery only gives 12v to what ever it is hooked up to. If you connect a device to the + of the middle battery and the - of the right battery you will get 24v.