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    Swap engine block on 1998 90hp 3 cylinder Yamaha

    With intermediate mechanic experience, is it possible to DIY swap the engine block on a 1998 90 hp 3 cyl Yamaha? I botched a helicoil job and drilled thru the block. I found one for $300 and am considering a swap. First attachment is mine with a hole in it, second is the potential replacement...
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    Questions about waterlogged foam on 1977 Mckee Craft

    good afternoon folks, I am looking to get approval from some of you (hopefully) on what I have planned. I have a 1977 Mckee Craft Waccamaw hull that I suspect has water logged foam. The plan is to use a circular saw to cut a 2" lip from the gunwales around the center of the boat. I would stop...
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    1977 70 hp evinrude REAL high idle at start, then mellows out

    Model number 70S77 ( i think) takes a couple tries to start up, but when it does it sounds like the flywheel is gonna blast off into outer space. Very high rpm at start then it mellows out. im Hoping for some guidance. I am gonna start with a carb clean. Then adjust the slow speed orfices...at...
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    Uhh...I think my drive shaft is bent-advice please

    My lower unit has been off for quite sometime. Now I think that it has been resting on the drive shaft. The upper bearing housing is off...but when I spin the drive shaft it makes a big circle at the top. I think it’s bent where the oil seal would go. Looking for a cheap fix, if possible...
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    Removing Drive Shaft Oil Seal 1977 70 hp

    I am trying to remove the drive shaft oil seal on my 1977 70 hp Evinrude motor. Is it all one piece? I have seen a video of a guy punching it through but mine is tearing.
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    Drive Shaft Oil Seal 1977 70 hp

    Resealing the lower unit on 1977 70 hp evinrude outboard. I’ve seen a video of a guy punching the drive shaft oil seal out, but mine is tearing. It is all one piece right?
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    Are my carburetors blocked from removal or am I missing something here

    Engine backfires so trying to check manifold gasket etc...and the lug nuts attaching the carbs to the intake manifold are blocked by a small extension off the top of the carb that holds the other end of the rod with the spring on it for the throttle linkage...am I SOL on checking the carbs or am...
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    Messed up lower unit 1977 70hp Evinrude

    Just turned over an old ‘77 70 hp evinrude for the first time since I’ve owned the boat. Heard a metal on metal sound coming from the lower unit and a powerful stream of air/water mix explodes out of my prop periodically. Have half a mind to take the lower unit apart and inspect it but wanted...
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    1977 70 hp Evinrude starter

    Hey everyone, long time reader-first time posting. I’ve got a 1977 70 hp evinrude motor that won’t start. It turned over when I bought it a month ago and has been sitting underneath a car port since. Battery is good, battery cables are good, starter is not getting any power or anything on my...
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