Size of highspeed jet in 1968 evinrude 18 hp fastwin

[james__12345]

Does anyone know the diameter of the hole in the highspeed jet of a 1968 18 hp fastwin?

 

[james__12345]

Re: Size of highspeed jet in 1968 evinrude 18 hp fastwin

I got the jet pulled out, and its a 57. marineengine.com lists it as being a 57d. Can anyone tell me the difference between these two parts or if they're interchangeable. Thanks.

 

[boobie]

Re: Size of highspeed jet in 1968 evinrude 18 hp fastwin

Look for a letter C on the jet. If it's not there use the D. Why are you changing it anyway ??

 

[james__12345]

Re: Size of highspeed jet in 1968 evinrude 18 hp fastwin

Look for a letter C on the jet. If it's not there use the D. Why are you changing it anyway ??

I'm not changing it. I was just making sure it was the right one as part of trying to find out why the motor is running so slow.

 

[Joe Reeves]

Re: Size of highspeed jet in 1968 evinrude 18 hp fastwin

The latest part number of the high speed jet for the 1968 18hp Evinrude is 322907. The marking on the side of the jet would be 57D, indicating that the jet inside diameter is .057 .

 

[james__12345]

Re: Size of highspeed jet in 1968 evinrude 18 hp fastwin

All I saw on the jet was 57. I didnt see any letters. I would assume as long as its 57 its ok?

 

[boobie]

Re: Size of highspeed jet in 1968 evinrude 18 hp fastwin

Yes...........