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    10mph at WOT 99' 25hp

    Working in my friends boat and I'm stumped. He has a Carlolina Skiff J16 and was getting 18mph by himself at about 4500-4700 rpm. I believe the pitch is too high,13p. But it got up on plane etc... Boat will only hit 10mph now with just him. It doesn't bog, chug, or sputter. It's smooth, it's...
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    1995 Yamaha 115 prop shaft replacement,

    Can I use a long jaw puller to get the carrier/spool out. I can't find any specific videos for the year. Is the prop shaft pressed into the spool? Thanks.
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    99' Johnson 25HP won't idle

    Friend's boat died last trip, towed him in with mine. It was flooding, primer bulb wouldn't get hard. Did carb rebuild kit and primer bulb is good now. Took out today, adjusted mixture screw at ramp, baseline is 2 & 1/2 turns from seated. Found the sweet spot about 1/8 to 1/4 turn...
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    Getting water on top of fuel tank.

    Please move if in wrong section... I just bought a 1995 Key West 1900 DC. It has a 60 gallon poly tank and the fuel gauge goes out intermittently. I noticed that there was a small puddle of water on the tank when inspecting. I soaked it up with a towel and the gauge started working again. One...
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    1999 Johnson 25 Water Pump

    Helping a friend with his water pump it's not pumping water we're gonna put the lower unit in a tub spin it with a drill. Then try to book a hose up to the legside and see what happens. Also I crushed that colar between the water pump and leg one that goes around the driveshaft can anybody tell...
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    Fuel tank condensation (tank not in use)

    How much water can a fuel tank accumulate? I seem to have A LOT!! I'm doing the floor on my boat right now so I figure let me see how the tank looks.... I've been using external tanks since I bought it about 7+ years ago because it's old (78') and didn't know the history of its use. I'm willing...
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    NOS ignition parts

    Does anyone have experience with new old stock ignition parts? I'm looking at a couple of power packs and they look really old, like 20ish years or more. My first thought would be to shy away from them but I'm in this "boat" because I have a bad power pack that is just under a year old. It's an...
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    Reed question

    Doing reeds on my 1986 v4 crossflow. There is a very thin narrow metal strip on only one side of each reed block that goes between the reed pedal plate and the reed stop. I'm wondering out of curiosity what it is since it's only on one side. Especially since it does not show up on any part...
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    Do I need a new block or small side case half?

    86' 110, getting a lean sneeze and puff of smoke near a bypass cover. I'm pretty sure it's the crankcase as it's the same exact area that leaked the first time. Reference this thread if needed https://forums.iboats.com/threads/leaking-case-halves-crankcase.741260/#post-5629912 When I did the...
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    Voltage regulator/rectifier compatibility 86' 110

    I'm thinking about replacing the regulator/rectifier assy and trigger because I still have a low speed miss. Mid to WOT is great and it has four new coils and two new power packs and a stator. For sure it didn't need a stator and who knows about the power packs but it's 35+ years so I'm good...
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    Engine options

    I have an 86' Johnson 110 and am looking at getting something not as old. My boat is a 16ft but heavy for a 16ft and has a deep hull (Airslot 165) it runs about 37mph with two people and fishing gear/coolers etc. My question is can I get away with a 90hp that is a looper? I'm sure I'll lose...
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    Leaking case halves/Crankcase

    86' 110. Motor has been back together since May after doing a hone job and rings. It recently started sneezing and doing a stumble/pause when it sneezes. I found smoke coming out from what I thought was the top bypass cover on the starboard side. Unfortunately it is the case halve. I confirmed...
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    1990 Mercury 25HP Carb questions

    Does anyone know the float height and drop? And how many turns out from seated is the idle screw? Thanks in advance!!
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    1986 Johnson 110 dies when accelerating.

    I will check spark and compression tomorrow but what are some possible causes of this? Boat has been running great but we had to get towed in yesterday. I was at about 3/4 throttle cruising back in and stopped to use the restroom. I don't remember if it stalled or I turned it off, but all of a...
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    Cavitation/Ventilation issue

    I have an old 16ft Wellcraft Airslot 165. It has a pretty deep hull for a 16ft boat in my opinion. It has a 110HP Johnson and does about 37mph. That might be a tad on the slow side for a 16 footer?? I'm chalking it up possibly to the deep hull .I don't have a tach but judging by engine sound...
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    First test run after new rings, running rough.

    86’ 110. I might have a driveway queen on hands. Did a link and sync, getting spark to jump 7/16. When I put it in the water it wouldn’t idle so I turned the timing out about and it’s better but still stalls sometimes. I sputtered and sounded like it was missing and then it cleared up. I took...
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    Tell tale elbow thread size

    Might be a long shot but would anyone happen to know the thread size for v4 crossflow? I will have to break old one out and I want to go with a metal piece instead.
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    Got engine together, sounds ok but could it be better? 1986 Johnson 110

    Got it started (ring job). It is firing on all four cylinders and seems run ok but it doesn't have that throaty sound like it used to if that makes sense. It sounds whiny like a leafblower lol. I will do a link and sync tomorrow and need to get a compression tester. Link to vid below, opinions...
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    Compression Coming through starter bolt hole, 86' Johnson 110

    Did new rings, almost ready to put powerhead back on. When I turn the flywheel there's a whistle sound coming through the bottom starter bolt hole and when I put my finder over it I can feel compression. Also, there is no "end" to the hole, it goes into the crankcase. Was thinking VRO but I see...
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    Financing a used boat

    Sorry if this is in the wrong section. has anyone financed a used boat in the 10-15k range? I did some research on new boat loans and learned you can get financing for 10+ years but can’t find much on used.I’m looking at a 96 Whaler Outrage with a 96’ Johnson 150 for 11k. I think that’s a...
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