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1978 Evinrude 85hp?'s
Hit n Run 
 		  Home: Lodi , Wi   04/08/2008 23:42
Alewives
Posts: 7
 

I've got a 1978 85hp Evinrude and am wondering the difference between it and a 115. My question would be a guess, is it just a change of the carbs/intake or is their more to it? Thanks very much in advance for any info!

Thanks much, Garrett
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Re:1978 Evinrude 85hp?'s
hondacat 
 		    04/09/2008 08:50
Moderator
Posts: 661
 

NOT THAT SIMPLE
actually the biggest diferense is the exhaust system
putting a bigger carb on the 85 hp will not alone add HP but more likely just waste some fuel
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Re:1978 Evinrude 85hp?'s
Hit n Run 
 		  Home: Lodi , Wi   04/09/2008 12:21
Alewives
Posts: 7
 

Hondacat, thanks again for your time! I have both motors . Got the 115 for free for the extra parts and lower unit(it's got bad rings in one cyl). I guess a better question would be, can I swap out the power heads and the exhaust housings, or are they not interchangable?
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Re:1978 Evinrude 85hp?'s
hondacat 
 		    04/10/2008 09:11
Moderator
Posts: 661
 

i cant be positive with out seeing the motors but i belive they are interchangeable the adapter housing and exhaust header must be changed to up the horse power though carburators alone wont do it
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