I'll keep it brief. 1985 4SK with under 10 hours. Dad stored it under his enclosed porch for several years. He asks me to sell it so I take it home, dump the fuel, change the plug, clean and paint the lower unit. Add new fuel/oil and place it in a 30 gallon bucket with fresh water. It starts on the 4th pull! Nice. I let it run and then notice 2 or 3 leaks (besides the normal water pump piddle). Closer inspection reveals an aluminum piece sticking out proud of the cylinder housing. Lots of corrosion. I figure maybe it froze during winter and cracked or just corrosion. Question is can it be saved. I've attached pictures. What a shame.
I had a Yamaha 4HP just like that for my large metal canoe...only mine was a few years later model(maybe 1994). you've got a really nice motor there and it will be a real shame if it's totally ruined due to corrosion. looks like it will have to be disassembled in order to do the necessary welding/repairs, but it might well be worth it and maybe a bit of fun to do, if you have the time and skills. otherwise you have a real good parts motor to sell on E-Bay for anyone with a similar 4HP. Heck, there's a few hundred dollars worth of parts there! Good Luck!
I was thinking the same thing regarding repair. I figure I can start picking away at taking it down to a level where a repair can be done, if it can be done. Worse case, like you said is that it's a great donor for parts. I hope to repair it though as it has so few hours on it and runs so well.
Can anyone recommend a good manual? I was checking out Seloc manuals and you can download them online as well. I read some reviews and some folks complained that the manual was too vague because it covers so many models and years.
1985 Yamaha 4hp 4SK Hole In Motor Water Leak
Re: 1985 Yamaha 4hp 4SK Hole In Motor Water Leak
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