100 to 1 oil mix 80's Evinrude ?

[IFF]

Anyone find that's too much oil to mix ?

[JDK]

 I owned a late 80's 20 hp evinrude.  When I bought it, I spoke to the mechanic and his comment was to run 50:1 all the time.  I did and had that outboard for over 20 years and never had an oil related issue with it.  Actually it was a very good outboard.

[MILLERMANKT]

T did the same in my 15hp evinrude, 50-1 and never had a problem

[FrankM]

100 to 1 is too little oil. You risk cooking your motor at higher speeds.
The newer VRO motors will reduce mixture to 100 to 1 at idle and trolling and increase to 50 to 1 when you increase RPMs.
All OMC motors from early 60s up until oil injection came out in the mid to late 80s are 50 to 1 gas to oil mix.  The older motors with the pressurized tanks used twice as much.  The 50 to 1 motors had roller bearings on the rods and crank which require less oil.  The older motors had flat bearings which required more oil.

[Mac Attack]

100 to 1 is too little oil. You risk cooking your motor at higher speeds.
The newer VRO motors will reduce mixture to 100 to 1 at idle and trolling and increase to 50 to 1 when you increase RPMs.
All OMC motors from early 60s up until oil injection came out in the mid to late 80s are 50 to 1 gas to oil mix.  The older motors with the pressurized tanks used twice as much.  The 50 to 1 motors had roller bearings on the rods and crank which require less oil.  The older motors had flat bearings which required more oil.

I agree!

[IFF]

Thanks for the replies, this one doesn't show any oil residue from being over oiled like some I see.  Will advise the new-bee to use 50-1 as its, most likely not going to be used for just trolling.  Meant to type too little oil  

[rgfixit]

My 1985 30 hp Johnson has been running on 100:1 since I bought it in 1990 something. No issues whatsoever. If 50:1 makes you comfortable, I'm sure it will still run.


Rg

[Jethro]

Got a mid 80's Evinrude 15 hp longshaft that says right on the motor, 100:1, but oddly enough I run my 1995 25 hp Merc at 50:1.