Retreading a 1971 Evinrude 50173-S

About inboard or outboard motors.

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Retreading a 1971 Evinrude 50173-S

Post by Bwanajim » Mon May 21, 2012 4:50 am

How much exploration is needed to decide go/no go on rebuilding an as is/where is 50 hp Evinrude 50173-S, missing some details: electric shift, throttle control parts and misc. fuel distribution tubing? The engine has not been run is at least a year--at least.


fergal butler
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Location: Co.Dublin, Ireland.

Re: Retreading a 1971 Evinrude 50173-S

Post by fergal butler » Mon May 21, 2012 10:06 am

Hi Bwanajim I just did a 1958 evinrude viewtopic.php?f=17&t=15835&p=119182&hil ... 58#p119182 and was able to get all of the parts on line and even the local marine shop had some, the paint and decals I got from If you have good compression in all cylinders with in 10% of each other thats a good starting point :)

Best of luck with it.

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Re: Retreading a 1971 Evinrude 50173-S

Post by pamelalynne1 » Mon May 21, 2012 4:48 pm

Everything depends on how much you really want to spend and what parts you need. The electric shift can be really expensive for parts. If you can find a mechanical shift bottom end and have a good power head you can make one out of two. For parts try or Electric shift controls can often be found on e-bay. I have a 1969 55HP three cylinder; but I haven't checked out what it needs yet. It's also an electric shift. You will find that the older motors, before CD ignition are far less expensive to do. I was able to do my 1958 35 HP for less than $150 in parts and another $35 for paint. That ws after the initial cost of the motor. If you are building a vintage boat you might want a motor that matches the period.

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