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    New rectifier and new battery. Still over 15 volts at idle... What next?

    Lol, my saga never ends... To anyone who has followed my troubles with the vacuum issue I had recently, the motor is running great now! But I have another issue... I noticed a while back when testing on muffs the voltage would rise and rise the longer the boat idled. Figured the rectifier was...
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    What's it worth? 2000 Nitro NX 882 with 150hp Mercury XR6?

    Looking at buying another project bass boat. The boat was hit in the transom by another boat and has some internal transom damage. The boat was totaled by the insurance company. I have a good friend who works at the yard this boat was brought to and will be auctioned off from. By looking at the...
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    '83 Inline 6 Mariner 115hp, Can carbs interchange to a set off of a '87 inline 6 115?

    Exactly what the title says... Will it work? The housings look identical...
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    Vacuum on carbs 1 & 2 a lot more than 3... What gives?

    What could be some possible causes for this issue? It's an '83 115hp inline 6. Carbs have been cleaned three times. They are spotless. The motor starts to miss just after you start it. The idle screw for carb 3 doesn't really do anything much when adjusted in or out. And like I said, they have...
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    Water intrusion in '83 115 inline 6, pull or not to pull inner water jacket cover?

    I have the gasket, but thanks to reading here have found out that the bolts are epoxied and need to be heated to remove and then some form of epoxy to reinstall... My symptoms are as follows. Motor acted up, lost rpms, and then once off plane wouldn't come back up on plane. NO POWER! Symptons...
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    where to get a water pump impeller kit for 1983 mariner 115 hp inline 6

    Help please... Looked and looked on the internet for a kit with all gaskets to fit this motor but I can't find a complete kit. This is supposedly the factory impeller part number, 47-89984T-4. Would like to have that and all gaskets to go along with it. Any help is appreciated! Thanks!
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    '81 Mariner 115 hp Inline 6, Compression on one cylinder low...

    Any opinions on this? I know gauges can vary, but I only have one gauge and it reads 120psi on cylinders 1,3,4,5,6. However cylinder #2 is reading around or just shy of 100psi. The motor acted up a couple weeks ago on the lake while running on plane and dropped around 1,000rpms. When I did come...
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    115 hp Inline 6 cyl, Mariner, '81, Coil Problem???

    Wanted some opinions here. While on the lake the other day my motor was running great with a light load. Few days later I had it out again, but this time it was loaded down with six people when I normally only have two in my bass boat. Ran great for a couple miles up the lake and then suddenly...
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    '98 Glassport 170V fiberglass Bass Boat Overhaul

    First off I want to thank everyone on this site for all of your great info! This site is the best when it comes to anything boating related and everyone on here makes it so... Here is my project. I bought this boat back in February last year. I got it for just $2,000 so I figured it was going to...
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    Onboard Charger Wiring Question...

    I know I will make a few cringe with this, but in my bass boat I only run two batteries. I have a 12/24v 56lb thrust trolling motor and my 115hp Mariner. I use battery 1 to start the motor and run all 12v accessories (as well as run my TM on 12v if I like which I never do). Battery 2 of course...
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    Can I run 12/24 TM, start my big motor, an run my fish finder with only 2 batteries?

    Had a 12 volt 33lb thrust TM and was given a nice Motorguide 56lb thrust 12/24 volt TM for my 17ft Fiberglass Bass Boat. Wanted to change the 12 volt out without adding any more weight to the boat if possible. I currently have two batteries in the boat. Both are deep cycles. One is used for...
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    Is my prop causing me to fall short?

    I bought a '97 Glassport 17' Fiberglass Bass Boat back in January. It isn't planing out like it should. I have a '83 Mariner 115hp Inline 6cyl on it. When I get up to full speed I am running flat in the water. My nose will not rise so I have a lot of drag. It has a Hydrofoil on it from the...
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    Boat has a Hydrofoil from previous owner, should I remove???

    I bought a 1997 Glassport 17' Fiberglass Bass Boat back in January. The motor is a '83 Mariner 115hp Inline 6cyl. The boat had the hydrofoil on it already from the previous owner. I have noticed the boat never has been one to raise its nose up out of the water much. It's quick to come up on...
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    1983 Mariner 115hp Inline 6 Cylinder Surging At High RPMs

    Need some help. This motor runs great at times on the top end, but has it's issues if ran there long. It will fall on it's face and then pick back up. You will be cruising fine at around 5,000rpms sometimes for a long period of time and then suddenly it drops to around 4,000rpms and hovers above...
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