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    Strange power loss 1991 Yamaha 25MSHP

    I’ve been having a mind numbingly odd issue with my Yamaha 25hp for the last month or so. I ran out of gas at WOT about 300 yds from the boat ramp. Tried to get the motor started, failed. Got it back to the ramp, busted my bowl gasket due to it being flooded. Rebuilt the carb. Since the...
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    1991 Yamaha 25mshp 2 Stroke Emergency Signal Light

    This could be a stupid question, but would anyone be able to enlighten me as to what the emergency signal light... signals? Last night I took my 25 2 stroke out for the first time since thanksgiving, and the first time since rebuilding the fuel pump. My impeller was shredded and the motor was...
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    Yamaha 25MSHP Fuel Pump

    Hello. I have been unable to locate a rebuild kit or part number for the fuel pump on my 1991 Yamaha 25hp 2 stroke. I have called up my local yam dealer and came up short handed. I have seen people on this forum talk about rebuilding or replacing them, but I have had no such luck finding a kit...
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    Water in lower? Yamaha 4

    Very general question that I have not been able to find the answer to online: Should there be water in the lower outside the impeller housing? I have been fighting with a 4hp trying to get it to pump water. New housing and a second new impeller and I’m finally getting water inside a bucket…...
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    Yamaha 4hp 2 Stroke Powerhead Removal

    I have a 1993 (according to model number) 2 stroke Yamaha 4hp. I am trying to figure out why it’s not putting water out through the tell tale (I’ve replaced and rechecked the impeller 3 times). After exhausting my options I’ve decided to remove the powerhead to take a closer look at the...
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    Clicking noise in neutral

    After dropping my lower unit on my 1991 25hp Yamaha 2 stroke (25MSHP) to replace my impeller - which had no blades remaining - I was dismayed to hear an awful rattling/clicking noise after putting the lower back on. I’m assuming I screwed something up in the linkage... but I’m not sure what. I...
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    1958 18hp Fastwin Cuts Out

    1958 Evinrude Fastwin 18hp model 15024 2 stroke, running 24:1 mixture This motor uses an old metal pressure style tank that as far as I can tell does not leak. This is my first 'pressure tank' motor and I'm still figuring out how the system works. My Fastwin will run - rough but run - for...
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    1958 Fastwin Not Getting Fuel

    Firstly: 1958 18hp Evinrude Fastwin model 15024 I purchased this motor close to a month ago and have been having trouble keeping it running. After waiting on a clear fuel line I have discovered that the motor does not pull gas in at all. Unless gas is directly pumped into the bowl it will not...
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    1954 18 hp Evinrude Fasttwin Frothy Exhaust

    Hello, all. To start off let me just say that I am not a boat guy. I've wrenched cars for years and am looking to BECOME a boat guy. Assume I'm an idiot and use small words :) I recently bought a 2 stroke 18hp Evinrude motor. 1954. It has fuel issues and needs to be primed constantly to stay...
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