Does a '91 Evinrude 90 have 60 or 90...

[billh1963]

degree head? Why would it matter? I am selling one and several people have asked this question. I'm just curious why they would want to know and why it would matter.<br /><br />Thank you!

 

[OBJ]

Re: Does a '91 Evinrude 90 have 60 or 90...

The 60 degree heads tend to be lighter and have better idle and running characteristics than the 90 degree heads.<br /><br />The 60's are called loop charged or loopers from the way the fuel enters the cylinder. Tends to mix the fuel and air better for a better combustion process.<br /><br />And since there are no by-pass areas or covers and the cylinders are closer to gether, the unit is lighter than the 90's.

 

[billh1963]

Re: Does a '91 Evinrude 90 have 60 or 90...

Thanks, OBJ.<br /><br />Which configuration would a '91 90hp have? Would my manual have the info or do I need to try to "eyeball" it?<br /><br />Thank you!

 

[OBJ]

Re: Does a '91 Evinrude 90 have 60 or 90...

Yours is a 90 degree Bill. The 60 degree loopers didn't make their appearance till 95' I think.

 

[billh1963]

Re: Does a '91 Evinrude 90 have 60 or 90...

Thank you for your expertise!