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    Fuel Pumping Out of Hole on Bottom Carb - 45 HP Merc

    I have a 1987 Mercury Classic Fifty 45 HP. Been having problems getting on plane, and won't throttle past 3000 RPM when in gear. Started happening after I had the carbs rebuilt. I had a stuck float, so there was gas pumping through the carb every time I turned the motor. I took the boat out...
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    Which Ignition System Do I Have on my Merc 45??

    I am getting ready to do some ignition system test, and am not sure which system I have in order get the proper readings. My motor is a 1987 Mercury Classic Fifty 45 HP - serial number OB161091. Can anyone tell me which ignition I have by the year/serial? My options are: ? Type I Ignition...
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    Stator Test Results + Burnt Wire - Need Some Advice?

    OK. So I've been having trouble getting my 1987 Mercury Classic Fifty 45 HP Motor to throttle-up past 3000 RPM's. Was running fine, then bogged down and died at WOT. Had the RPM problem ever since. Just bogs down at 3,000 RPM's and won't plane out or really do much of anything. Think I've...
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    87 Mercury Classic 50 won't throttle past 3000 RPM?

    Bought a 1987 Bass Tracker with an '87 45 HP Mercury on it. Floats were stuck, so I had to have both carbs rebuilt. Took it out for the first time this evening. Went right up on plane, and I was running 5,000 RPM at WOT (about 30 MPH). All of a sudden, the motor bogged down, and died. Started...
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    Do all Quicksilver Remotes "Beep" when turning the key to the ON position?

    I have a Quicksilver Throttle Remote on an '87 Bass Tracker. It's connected to an '87 Mercury Classic Fifty. Isn't the remote supposed to BEEP once when turning the key to start. The reason I ask, is that mine does not. It acts like it maybe wants to (I get a little static out of the small...
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    1987 Mercury 45 HP Stuck Float or Carb Problem? Need Some Help!

    I just bought a 1987 Bass Tracker about a week ago. The motor is a Mercury Classic Fifty 45 HP, with serial number OB161091. The motor has sat for 2 years without being started, so I went through and did the basics. I greased everything with a good mercury grease, replaced the water impeller and...
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    Compression Test and Spark Test Questions?

    I'm wanting to do a compression test and check the spark on my 1987 Mercury Classic 50 [45 HP}, and I have a couple of questions. Can I do these tests with the fuel line unhooked? I just replaced the impeller. Could it damage the impeller to turn the motor over several times with no...
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    1987 Mercury 45 HP Impeller Change: Having Some Trouble

    Hello all. Just changed the impeller, gaskets, and top of the housing on Water Pump of 1987 Mercury Classic Fifty 45 HP 4 cyl. (serial OB161091). I ran into a couple "hiccups" along the way, and need some advice. Here goes: ? After I completed installation and got everything back together, I...
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    1987 Mercury Classic 50 - Water Pump Installation Help

    Hello all. Getting ready to install a new impeller and gaskets on my 87 45 HP Classic Fifty. As I am reading through my manual, I have come across a section that is confusing to me...and need some help. There is a section at the end of the installation instructions titled "WATER PUMP BASE...
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    Looking for 1987 Mercury 45 HP Classic Fifty Service Manual.

    Does anyone know where I can go and download (willing to buy if needed) a digital version of the service manual for a 1987 Mercury 45 HP 4 cylinder (Classic Fifty)? I like the digital versions because I can print out the pages I need, when I need them. I know Mercury had them for a while, but...
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    1987 Mercury Classic Fifty - Several Questions

    Hello all. Just bought a Bass Tracker with a 1987 Classic Fifty on it. The boat was used on a trolling motor only lake, so the motor hasn't been run in a few years. I've been doing a lot of reading on these forums about getting a motor up and running, and I have a couple of questions. Here goes...
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    1987 Mercury 45HP Makes single "click" when starting?

    So I recently bought a Bass Tracker with a 1987 Mercury "Classic Fifty" 45HP outboard on it. When I turn the key, I get a single "click" and then nothing. When I push to choke, I also get a click from the electronic choke, and then a single click, and still nothing. I charged the battery and...
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    Throttle/Shift Control Not Locking in Idle

    hello all. i recently picked-up a 1987 Bass Tracker 17' w/ a 1987 Mercury Classic Fifty. Here is my problem: the Throttle Control will not lock into neutral. i can basically push it forward or reverse without pushing the button on the shifter. The neutral button engages, and i can rev it up/ it...
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    Help Removing Oil Injection System From Mecury 150.

    I am removing the oil injection system from my Mercury Outboard, and need some guidance. Any help would be greatly appreciated. Here we go... The air line that runs to the remote tank is bolted into the block at the bottom of the starboard side. How do I plug this off once I remove the air...
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    Put New Warning Horn in Remote, Now Idles at 3,000 RPM

    this mercury outboard is going to be the death of me... I just finished installing a new warning horn in my Commander 2000 Remote. I put everything back together exactly as I took it apart (or so I thought). Now when I start the motor, it idles at 2500 - 3000 RPM. What did I do wrong? The...
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    Help Needed with Oil Injection System Removal on '88 Merc

    Does anyone know of any good thorough instructions on how to completely remove the oil injection system from an '88 Merc 150 XR4 Magnum? I want to safely remove the system and start premixing. Thanks for the help. AC .
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    Removing Oil Injection and Need Part Number for Block Plug/Cover.

    hello all. i am planning on removing the oil injection system from my '88 Mercury Black Max XR4, and can't find a part number for the plug that goes into the black where the pump used to be. can anyone help me out with this. thanks, ac.
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    Oil Injection Alarm Starts Beeping at 3,000 RPM's

    I have a 1988 Mercury 150 XR4 Black Max. She runs perfectly, with one exception: The oil injection alarm starts intermittently beeping (beep - beep - beep) at exactly 3,000 RPM, and won't stop until the RPM's fall below 3,000. ? This alarm is driving me CRAZY! I've replaced the Alarm Module...
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    Tachometer and Rectifier/Regulator Question

    Hello all. I am planning on doing some ignition tests this weekend, so I needed to get the tachometer working on my 1988 Mercury 150 XR4. After some rewiring and testing, I finally got it going. In the process, I ran into some trouble, and wanted to ask the forum a few questions. Here goes: 1...
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    Low Oil / Oil Injection Alarm at High RPM's - UPDATE -

    I have a 1988 Mercury XR4 150. I've got her running great - but there's one last problem I can't get figured out. When I get past about 1/4 throttle, my Oil Injection Alarm starts beep - beep - beep, and won't stop until I slow the boat down to about 1/4 throttle again. It's not a constant beep...
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