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    Reliability of 1998 25hp EH

    I picked up a 25HP that looks to have overheated badly. From my calculations, it would cost around $1600 to get it running again. I've noticed that there don't seem to be too many of these motors on the used market but there seems to be quite a lot of ruined power heads. Are these just bad...
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    Overheating?

    Hi, I have a early 80’s Mariner(rebranded Yamaha) 25C 695 that I rebuilt. Motor runs fine now but I have only run it in a 50 Gal drum, my boat is in another location. The issue I’m having which may not even be an issue, is that the power head seemed really hot, way too hot to touch, after...
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    How bad is my ignition coil?

    According to the service manual for my mariner 25C 695, the primary ignition coil should measure 1.6-1.3 ohms. I measured 2 ohms. Is this a big deal? Should I replace it?
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    Anyone familiar with CM61-26 secondary ignition coil?

    So looks like one of my two secondary ignition coils in my 1983 Mariner 25c 695(made by Yamaha) is bad and of coarse, they don’t make them anymore. the part number stamped on the side of the coil says CM61-25 and it has either a gray or orange colored wire coming out one side and the spark plug...
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    Is Carb only difference between 25 & 30 HP?

    I am rebuilding a 1983 Mariner 25C 695 and while shopping for parts noticed a 30 HP carb that comes with a choke solenoid. I was already considering buying a choke solenoid anyhow but then the thought crossed my mind, could I throw a 30 HP carb on there as well and end up with a faster motor...
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    Choke Solenoid Necessary?

    I’m fixing up a 1983 Mariner(Mercury/Yamaha) 25C 695 tiller handle and at the same time adding electric start to it. On the diagrams, there is a choke solenoid that is wired to a switch. Is there any reason I would have to have this? With it being tiller, I can just manually pull the choke if I...
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    Is my motor toast?

    So I bought a 14' Lowe that came with a 1983 outboard Mariner 25HP. Long story short, I put the boat in the water, Took off and after about a minute the motor started to loose power. I quickly realized something was wrong and shut it down. Then I took the cowling off and splashed water directly...
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    Engine kicking at idle

    So I will start by saying I know next to nothing about outboard motors. Having gotten that out of the way, I came into possession of a 1983 Mariner 25 CM 695 which is made by Yamaha. From what I can tell compression is good, carb is clean and the motor runs. My issue, and this may not even be...
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