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Tricky question 1974 85hp 115hp

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Hey all,

I'm new here so I'll start by saying hi.

I have a '74 85hp and 115hp motors. My question is are the bottom ends of these motors the same. Did Evinrude simply change parts in the top end to achieve the extra hp. The reason I ask is that the 115 is blown up but my 85hp works great....just looking for a little more power.

Thanks again for the help.
John
 
Re: Tricky question

Thanks Joe that helps. Do you have any info on the top end of the motor, eg: carbs, intake, etc.

Thanks again
 
Re: Tricky question

Hi all,

Anyone else have any info? I must not be the only one to try this. Or should I be asking this somewhere else?

Thanks again
John
 
Re: Tricky question

If they are like the 73' then they are different top ends.
Displacement is larger for the 115.
The 115 and the 135 top ends look more similar according to the 73' cataolg.
 
Re: Tricky question

Thanks Jim,

Is this catalog you reference available for download on-line? I guess I'll just have to fix the 115.

Thanks again
 
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