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  1. 3

    carb adjustments

    I have a 1996 evinrude 3 cylinder 50 horse. I recently rebuilt the carbs because they haven't been touched in a long time and it was running a little rough under 3,000 rpms. I have owned the motor about 8 years and don't know if it was ever messed with. The carbs were very clean inside and I...
  2. 3

    1996 evinrude alarm

    I have a 1996 evinrude 50 horse on a pontoon and I just got it out for the first time this year. In the past when I turned the key to the on position the little horn under the console would beep once. The alarm has worked in the past by warning me about low oil and last year it went off when the...
  3. 3

    evinrude 50 gear engagement issue

    I have a 1997 evinrude 50 horse that doesn't go into forward gear correctly anymore. When I push the control forward from neutral to engage forward sometimes it doesn't go into gear and it makes a clicking sound. If I barely move the throttle forward a little more it goes into gear and works...
  4. 3

    Water pump questions

    I'm replacing the impeller on a 1996 Evinrude 50 horse. I bought the whole water pump kit from the dealer. There are no instructions in the kit and I haven't been able to find a book locally to help me out. I don't have time to order the book because I need to do this tonight or tomorrow. I have...
  5. 3

    wire size for electric trolling motor

    I have an electric trolling motor that I mounted to the front of a 20 foot pontoon boat. I ran pretty heavy wire from the motor to the battery that is mounted in the rear. I don't remember the gauge of the wire I used (8 gauge is sticking in my head). The motor doesn't seem like it has the power...
  6. 3

    Evinrude plug gap?

    I am going to put new plugs in my 1997 evinrude 50 horse 3cyl. 2 stroke. The current plugs are champion QL78YC, my local dealer isn't overly friendly since I bought this boat instead of a used one he had for sale. I just got it Saturday and haven't gotten a shop manual yet. Can anyone tell me a...
  7. 3

    Help identify a part please

    I just bought a pontoon boat that has a 1997 evinrude 50 horse 3 cylinder outboard. I noticed that on the starboard side of the engine just behind the carbs. there is some kind of little valve that has a few hoses running to it. There is a very small amount of fluid coming from one hose that...
  8. 3

    cracked block repair

    I have confirmed that my mercruiser 120 has an internal crack on the port side below the number 4 cylinder. It's right next to the rear frost plug by the drain valve. It's not a huge crack but it is enough to let water drain into the oil. There is a product called hard blok used in race car...
  9. 3

    used mercruiser engine

    My 120 mercruiser wasn't winterized properly and cracked causing a massive water leak into the oil. The boat isn't worth buying a new engine so I started shopping for a used engine. I found a 120 that the shop says is good for $500. It was out of a 79 or 80 boat (mines an 80). Another dealer has...
  10. 3

    please help identify an old outboard

    I have an old outboard motor that I am tinkering with. I had it running ten years ago but the float crumbled so it's been in storage ever since. I would like to restore it for fun as it's in very nice shape. I can't find a name anywhere on it but did find the following numbers: serial # 776139...
  11. 3

    missing part ID

    I'm trying to help my brother in law identify a missing part on a boat he just bought. The engine is a 350 Chevy with an Edelbrock aluminum intake on it. I haven't seen this yet so I can only describe what he told me. He said that on either side of the carb on the intake there are holes machined...
  12. 3

    fuel gauge fluctuation

    What might cause a fuel gauge needle to jump around and sometimes not work at all? I checked the electrical connections on the gauge and on the sending unit. I have not pulled the sending unit from the tank to look at that yet.
  13. 3

    motor flushers

    I just read in my manual that when you are using a motor flusher the water should only be turned on slightly before starting. I'm using it on my 1979 120 merc. I have been getting water in the oil. I changed the head gasket, checked for cracks, and checked the manifold and riser. I "may" have...
  14. 3

    Water in engine oil

    I have a 120 mercruiser I/O, I think it's a 1979. After several months of use I find alot of water in the oil. I would guess 1-3 quarts of water. The engine runs great and the sparkplugs look really good. I'm going to tear the engine down to look for a cracked head or block. My problem is that...
  15. 3

    water in oil!!!!!!

    I forgot to change the oil in 120 Mercruiser I/O last fall. The boat was covered all winter but rain water was able to get into the engine compartment area. When I changed the oil the other day between 1-2 quarts of clear water came out and then the ugliest yellow oil you ever saw. I put in new...
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