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  1. T

    Alum vs SS prop 20Hp

    aluminum might be "as strong", but I guarantee you that they ding 100x easier the tips of the blades bend a LOT easier too The bottom appears to be all SAND, however what's under/in that sand? BTDT cost me a lower unit on a JohnnyRude 9.9 on the Arkansas River (a submerged sandbar) not all...
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    2020 motor on a 1982 boat

    it was my understanding that the "new" 20hp yamaha is efi. Exactly the same engine as a 25, they just pulled 5hp out of it. still heavy for a 20, however. In my opinion. My dad has a 20hp carb, brand new 2014 model (bought used from the original purchaser). Love it. The carb setup works...
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    What are the advantages of jets?

    rented one on the white river yesterday (20' supreme with 40/30 mercury jet) Loved it the 2 times I was running a shoal in 5 or 6" of water. Rest of the time it was just noisy and fuel thirsty. top speed upriver was 16 mph, down about 19. But the boat is on plane at like 5mph. Just the way...
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    2020 motor on a 1982 boat

    the yamaha's are in short supply dealer I work for is geting out of outboards and boats. No money in them, usually net loss once you figure in aged inventory, etc. I ain't happy about it but rarely work on them anymore anyway, they don't break, & people do their own maintenance (which is...
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    Thru hull fitting on side of boat??

    my old boat had a pair of plastic thru-hulls, one on each side I beat that poor boat against every rock stump tree boat ramp garbage, trailer, you name it never once broke a thru-hull interestingly enough, that boat had a bronze thru-hull on the transom for the rear livewell. That one leaked...
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    What are the advantages of jets?

    they don't turn well, they don't reverse well, they use a lot of fuel, they are noisier than a prop drive, they require a little more maintenance on the foot, slow speed maneuvering is mostly useless, can't turn without using the throttle (or can't turn very well), slower top speed, yes if you...
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    9.9 prop pitch suggestion

    200 rpm per inch of pitch "generality" doesn't apply to anything under about 50hp.
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    Look at the CRAP the new fuel blends leave behind ...

    you want an eye opener? Grab an old measuring cup, or a glass jar, or something along those lines. Fill it about 3/4 full of fresh gasoline. Don't put a lid on it. Let it sit a few hours after you mark the level that you filled it to. I do this at work to prove to techs (especially...
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    The cost of OEM parts. I do not understand.

    OEM is more expensive for a lot of reasons Remember, most OEM stuff is just that, OEM. Same part that is put on a brand new motor/boat/car/whatever in most cases. They have a warranty, so manufacturers must be able to source a particular part from someone who's going to stand behind it if...
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    1984 30 Hp Mariner by Yamaha

    same as a yamaha c30, well the powerhead is. I can't speak for the foot/leg/clamps/etc because I did not really compare them. rougher running, noisy, a bit thirsty but pretty good old motors--so long as it's been maintained. With that said, keep in mind it's an old motor. They put the "C" in...
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    control box question

    that's not uncommon on yamaha yea u can adjust it pretty easy ideally you want it to be a slight detent toward reverse in that u can adjust the link at the motor a hair toward reverse from the neutral position but before u do, you need to make sure the cables aren't binding or seized (common...
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    Buried Prop on 14 semi-V

    keep raising it as you raise it you will find that you'll have to adjust trim sometimes you will find that with the motor at a certain height, you won't need as much trim "out". Also as you raise the motor, you may find that you're over the max rpm. A hundred or two with a light load is...
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    Motor size for 1448 boat

    tracker grizzly 1448 is rated for 25hp. They list it as 562 lbs weight. I don't think their weight is correct. I've got a heavy war eagle 1548 with floor, all .100, and it's 360 lbs. that said I've recently run a 1448 grizzly with a 25 yamaha. Was not impressed with the hull's...
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    State of Illinois

    Sure glad I don't live in Illinois. Or Kalifornia. Or Nevada. Or DC. Or anywhere in the NE although Maine is really pretty certain times of the year. Nice to visit, but don't stay long. My friend lives near Sparta, and sold his boat, for this reason alone. Said if he uses it once a year...
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    2 stroke or 4 stroke, which do you prefer?

    when that happens you take the spark plugs out, blow the oil out, and reinstall them & start the engine after checking and/or refilling the crankcase. Easy. I've only done it maybe twice in the 24 years I've had to deal with 4 stroke outboards. One was a 9.9, the other a 20. The 20 was...
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    Too much alcohol !!

    yeah been there, done that. we techs are never the good guy, always the bad. Too expensive too slow dirty flunkies. At least that is the general consensus. E85 runs fine in a lot of things but not without increasing the fuel flow through the engine. Jetting, injectors, etc. I run a newer...
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    The ultimate bowfishing boat?

    you ain't been around these guys. Tall means nothing. They'll just run it in there and bust whatever's in the way. Pretty rare to be too tall around here, at least where we shoot (off the river in the many coves creeks and cutoffs). If you guys ain't never been bowfishing, see if you can...
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    Question about Mini-Jacker install

    I had trouble with rigging an old unknown brand 1548 for a friend. It was a 15" transom and he had a 20" motor, so I recommended the mini jacker. He ordered it and we were putting it on. Tested yesterday. It is real high on the transom but still too low. With the setback alone, I think we...
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    2020 Yamaha F25 Question

    Turbo 11" pitch hotshot. -But- now on the CMC, I need more pitch. Went to lake yesterday and did some adjusting on the CMC and motor height, still too low, bouncing hard on the limiter at 30.0 mph with the 11" which shows to be 3% slip which I think is good, but I need to borrow or pick up a...
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    HP Rating, Displacement and Performance

    Having been in the performance industry my entire life, theory will tell us that a larger engine that is detuned will make more torque below peak power. That ain't always the case. sometimes it is, other times not so much. It's entirely possible with current technology, machining...
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