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    Bringing up an Old Topic. Mercury 150 Black Max

    Well I am back at it again trying to get my Mercury Black Max 150 up and running. It is on an open bow Maxum 18 foot. I just went through the motor, corrected the timing, got a carb re-build kit , got that going and the motor is running great until it under load. I get can get an immediate 5600...
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    Water Spurting in 1992 Black Max 135

    So I replaced my water pump housing and impeller. I put it all back together but the water is spurting out of the pee hole. It is a strong spurt followed by nothing followed by a strong spurt, it definitely has a timing / rhythm to it. This is just with the muffs on I have not tried it in the...
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    Looking for a Manual for a 135 Mercury Instruction on How to Replace the Water Pump

    Does anyone have a copy of the manual for a 1992 135 Mercury Black Max Serial Number 0D050964? Or a link to some instructions. I just bought a replacement water pump kit and there are a lot of little o rings and such that I want to make sure I replace correctly.
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    Impeller Replacement 1992 - 135hp Mercury Black Max

    1992 - 135hp Mercury Black Max So I brought the ole boat out of storage put the muffs on, sent my kid to turn on the water, and started the motor. Unfortunately my kid got distracted along the way and ended up looking at bugs and not turning the water on. So I started up the motor and didn't...
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    Constant Alarm

    1992 Mercury Black Max 135 Getting a constant beep beep beep after the warning alarm when I am trying to start the boat. Oil level is good, boat is cold so no overheating problem. I am thinking a sensor failure somewhere. Anyone have any idea what to check?
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    1992 Black Max 135 - Enrichener Questions

    So I got my carbs all cleaned up and and the boat is running great. It is just at start up that the engine seems to really smoke and pop for about 10 seconds before it cleans itself out and is running well. I am wondering how the enrichener works. Does it squirt some fuel into the carbs every...
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    Last Carb Question I Promise

    135 Black Max 1992. Having fuel delivery problems and I have a ton of fuel blowing out of the the bottom carb. The pic helps illustrated where. I am thinking it must be a bad needle valve but any other help would be appreciated. Fuel is just gushing out of the carb. Arrows show where fuel is...
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    Black Max 135 Gas Guzzler

    Still getting my new to me Black Max up and running well. After rebuilding the entire fuel system the motor is running good but it is still running very rich right now. It is blowing through the gas and I can smell a strong gas smell while it is running as well as leaving a huge 2 stroke smoke...
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    What do you think of these compression numbers

    Mercury 1992 Black Max 135, checked compression last night and it was 90 on all 6 cylinders. The motor runs great and it will throttle up fast with no load in the driveway with the muffs on but I have no hole shot and the motor is very boggy under load. Do you think the lower compression is...
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    Black Max 135 Jetting

    Got a boat from the coast and I am using it around 3000 feet. It seems to running super rich (very wet plugs, lots of smoke, real boggy). Just wondering if anyone has a jetting chart or knows what mains I should be using at this elevation? I think I want to jet it down but I am not sure how far...
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    New Prop Doesn't Fit

    So I bought a new prop off iBoats and it is quite a bit different on inside of the hub than what my current one looks like. The prop on the right is the original and has the guts of the hub pictured in front. The one on the left is the new one and the hub guts are part of the prop. It seems to...
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    1992 135 Mercury Black Max Service Manual

    Anyone got a link to where I can download it from? Free is always good. Looking a doing a full re-build so need the whole thing.
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    Looking for Compression Numbers for a 1992 Mercury Black Max 135

    Wondering what compression numbers I should be getting on cylinders. I lost some power and am going to check out compression tonight.
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    New to the Forum and Prop Question

    Been around engines my whole life (sleds, dirt bikes, trucks) but I am new to this boating thing so I have a prop question. I recently was given a boat with a 1992 Black Max 135 Outboard. It is on a 18 foot Maxum bow rider of the same vintage. Took it out for the first time over the weekend...
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    Small hole in the leg?

    I am new to the forum and I have an approximately 1978 Evinrude 60. I just got into boating but I am a motor guy as I have sleds, motorbikes, jeeps and the like so I can fix stuff and figure things out. But I have a quick question for the experts on the forums here. I have used the motor about...
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