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    Lost Spark on Hole #3

    It's still amazing to see how many experts are on this forum. I've been helped greatly in the past and am hoping for some more help now. I'm still running a 1978 175 Black Max. Saturday the engine became sluggish and wouldn't rev past about 1500rmp. Changed all the spark plugs, still had the...
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    175 Black Max timing

    Trouble again. I've been messing with the timing to try to get my boat to run, and am running into a little problem. I have the manual and follow the steps, but I'm' missing a dial indicator to make sure the marks on the fly wheel are where they should be theres(' about 7 different punches and...
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    Rectifier Replacement

    I have a 1977 BlackMax 175HP. The rectifier tests bad and I'm looking for a replacement. I've read a few posts where people talk about a radioshack substitute that works great. I could use some info on this. Thanks
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    Engine boggs but doesn't kill when key is turned off

    This is my latest development with my 1977 Black Max 175. Starts and runs like a dream. When I go to turn the key off, the engine hesitates and rpm goes down, but it won't kill. Please help. I've removed wiring harness from key and touched wires from engine, and still won't die. There must...
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    Jets or Prop

    With another season fast approaching I'm anxious to get the boat out that I got last Fall. I'm still dealing with a problem with acceleration. My '78 175 BlackMax roars once you get it going. I've gone through the carbs and changed just about everything, but I think I may need to rejet or...
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    175 Mercury Black Max cuts out on acceleration

    I'm brand new to the forum, and am in need of help from all of you "experts". I have a 1977 175 Black Max on a Crestliner 990. The engine starts and runs great. With muffs, the engine will rev and seems to be working great. The problem I'm having is this:<br /> After sarting and running...
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