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    Swap 1978 9.9 hp piston on 1987 9.9 hp powerhead

    I have one bad 1987 piston and I have a good used 1978 9.9 hp piston. I want to swap it to my power head. What I see the different is the connecting rod cap on old version has one oil hole vs new version has 3 oil holes. I don't want to swap the connecting rod but could I use the older version...
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    1993 9.9 hp/15 hp power head to 1991 15 hp bad powerhead outboard.

    Just need a quick advice! I have 1991 15 hp low compression powerhead. I found a good 1993 9.9/15 hp power head with 150/145 psi of compression. Could I be able to swap it on my outboard? If not what is the show stopper?
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    Advice to remove the damage keyway

    I got a low compression (50 psi) on both cylinders of 1988 15HP Johnson. It turn out the keyway got damaged. I have tried to get it out different way but I could not. At first I thought the cylinder got scored but upon removing the head the cylinder wall still look good. So I removed the...
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    1991 Evinrude E15RLEIA Low Compression

    My 1991 15Hp Evinrude has top cylinder 65-70psi and bottom cylinder 90 psi. I remove the head and inspect the cylinder, there is long mark on top cylinder so it explains why top cylinder has a low compression reading. So I decide to give it quick rebuild. Here is my plan: get a good used block...
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    1994 40hp Johnson run

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    Help to identify the boat year and model.

    Hello, I just bought a used Starcraft boat but I could not find the information about it. The ID plate could not tell much. It is 14.9' long and 5' wide. Please look at the picture and see if you could tell the year and model.
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    Help to identify the year of Johnson 1989-1996 20-50HP

    Hello, I need help to identify the year and Hp of this outboard I just got. Since it was on the duck hunting boat so the outboard was painted so no way to tell the year and hp. I google the part#333622 Port Stern Bracket it shows 1989-1996 20-50HP. The head part#333543 shows it is 1990 of 40...
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    1990 Mercury 40 hp, four cylinder_piston replacement question

    Hello, I have 1990 40 hp Mercury 4 cylinder #OC280916, there is one piston got bad shape and I want to replace it. Mine is 3 rings per piston (Design#1). I could find the 2 rings per piston (design #II). Could I use replace one piston with the design #2 piston on it?
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    1987 60 Hp Evinrude, 3 cylinders. Need advice!

    Hello, Just check the compression of my 1987 60 hp Evinrude, 3 cylinders. Top cylinder 120 psi, Middle cylinder 108 psi and the Bottom cylinder 119 psi. Is it Ok for the middle cylinder low but with in 10% spec. Could I keep running like this?
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    Need help to identify this Evinrude.

    could anyone tell me the year and horse power of this outboard. The name tag was missing from it. I could get some number on the block.
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    1987 60 hp Evinrude vs 1984 70 hp Johnson

    Hello, I am going to pick up 1987 60 hp with power tilt that has one bad piston (3 cylinders). I want to move the power head of my 1984 70 hp Johnson (non power tilt) to it. The block looks like the same. Please advice if any issues I may have. Curious to know if the block the same what make 10...
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    Need to identify the year of this 200 outboard, 20 hp

    Hello, Please help me to identify this 200 mercury outboard. There is no serial name plate anywhere on it. I attach some pictures of it. The compression is 110/115 psi and has strong blue spark but I could not remove the lower unit out of it to change the impeller. Two nuts have been removed.
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    1984 6 cylinders Mercury lower unit assembly

    I have removed the bearing carrier to replace the propeller shaft seal but when I put it back. I always got the forward, could not get in neutral. Today, I remove the carrier again and need an advice how to install it correctly. The piece down inside that make the gear engage or disengage but I...
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    40 hp Oil Injection Mercury

    Hello, I have two of 40 hp Mercury Oil Injection Outboard. I would like to know the year of the. The first one is OC201830 and the second outboard is OC280916 both of them made by Mercury Marine USA. OC280916 has the low compression on the third piston so I would like to take the power head of...
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    What is the year of 150 hp Johnson

    Here is the sale of 150 hp Johnson at my city. What is the year of this motor? It is just. $100.00 and I want to get it for my winter rebuid project. http://m.kijiji.ca/ad.php?adid=245703727 Is it a good buy ???
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    Does 1978 Mer. 40 hp IGNITION work on 1973

    I have 1973 40 Hp Mercury 2 cylinder outboard which I got with the boat. The boat sat outside for 3 years. All the wires on ignition system were corroded. I 'd like to replace all the wires but I came up a sale on ebay. It is from 1978 mercury 40 hp outboard motor IGNITION. I 'd like to know if...
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    Year of 40 HP Blue band Mercury

    I just got an aluminum boat with 40 Hp Mercury with blue band. There was missing an ID plate on the motor. Only serial I could read on the block is 7007257. The owner had removed the water pump to service and misplaced all the parts. I 'd like to find out the year so I could order the water pump...
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    1995 15 Hp Johnson outboard

    Happy holiday to all !!! Just pick up an 1995 15 Hp Johnson outboard (J15REOD) for holiday messing around. It just have a spark on one plug. There is a power pack # CD2 584783and a coil #583740. How do I find out which one is bad part?
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    Piston rings for 40 Hp Johnson RD-22

    I have 1960 40 Hp Johnson RD-22 I have one piston ring broken out of 3 in one cylinder piston. Where do I find new ring set for it. Does anyone know part number ? It is standard size. Thanks alot.
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    1984 115 Hp Mercury

    I have owned a couple Chryslers, Force and evinrudes but no Mercury. I came to take a look at a boat and motor yesterday. http://detroit.craigslist.org/wyn/boa/1466835941.html The motor is 1984 115 Hp Mercury inline 6. The ower had no thing to run the motor. It was cranked a couple seconds...
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