Identify old Evinrude

[rjrottari]

How do I identify an old 50 Hp Evinrude outboard when the motor and mount do not match?

 

[Fuzzytbay]

Re: Identify old Evinrude

Look for a serial number stamped on one of the water passage coolent frost plugs.

 

[rjrottari]

Re: Identify old Evinrude

Where is a water passage freeze plug?

 

[Fuzzytbay]

Re: Identify old Evinrude

I don't think thats the actual name of it, I forget what rudes call em, its a silver cover on the block, about the size of a quarter. usually one on the side, and one on top. The number printed on it, is the serial number.

 

[rjrottari]

Re: Identify old Evinrude

50373r
e0012591

 

[domwebhost]

Re: Identify old Evinrude

50373r
e0012591

1973 Evinrude 50hp, Model 50373r

Parts info can be found here:http://www.boats.net/parts/search/BRP/EVINRUDE/1973/50373R 1973/parts.html

I hope this helps.

 

[1946Zephyr]

Re: Identify old Evinrude

Ahhh yes. The Evinrude Big Twin/ Lark. One thing I like about these, is the dual carb set up. Very easily made into a racing engine.

 

[rjrottari]

Re: Identify old Evinrude

Thanks all!! Now I can get a manual and start tinkering.

Now how do I stop the idle screws from vibrating out of adjustment?

 

[F_R]

Re: Identify old Evinrude

Now how do I stop the idle screws from vibrating out of adjustment?

Replace the retainers, part number 315232. They are the keyhole-shaped plastic pieces that the needles go through. Of course you know your linkage between them is missing, right? But the linkage is not realy necessary

 

[rjrottari]

Re: Identify old Evinrude

Is there linkage between the needle valves? Can I get it? Or just use teflon tape on the threads?

 

[Andy in NY]

Re: Identify old Evinrude

these are great motors, ive had a 73 and a 74...