Fuel Mixture 1986 classic 50 Mercury

[cbkz]

Hi Guys,i am trying to find the fuel mixture for my 50hp mercury. The serial number i have. #9456469. i believe it is 100:1 although i have also been told 50:1. I assume it will foul the plugs if it has too much oil in the fuel.

 

[Barnacle_Bill]

Re: Fuel Mixture 1986 classic 50 Mercury

50:1

 

[j_martin]

Re: Fuel Mixture 1986 classic 50 Mercury

The merc ignition is so strong it takes about 20:1 and idling to foul plugs.

100:1 will make scrap out of it in a hurry.

All normal mercs (fishin' motors) less than 30 years old take 50:1. Some are VRO (they mix it at a variable rate) and some racing stuff needs more oil.

hope it helps
John

 

[pthomas]

Re: Fuel Mixture 1986 classic 50 Mercury

Hi

Can anybody help. I have a Classic 50 Mercury engine serial number 9451519. I am looking to find year of manufacture to enable me to get a manual.

P thomas

 

[picktaylor]

Re: Fuel Mixture 1986 classic 50 Mercury

it may be too late, but here you go:

http://stores.ebay.com/Outboardnuts/Mercury-Year-Lookup.html

 

[dml756]

Re: Fuel Mixture 1986 classic 50 Mercury

All:

I have what I believe to be a 1986 50 HP Merc on an 18' Eastern. Boy is it noisy. Would like to re-engine, but weight is an issue/ Can anyone tell me what that 50 HP (3 cyl) weighs?

 

[verado7]

Re: Fuel Mixture 1986 classic 50 Mercury

a 4cyl classic fifty weighs 245 .

 

[dml756]

Re: Fuel Mixture 1986 classic 50 Mercury

I think that the motor I have is 3 cylinder, but I could be mistaken -I will check when I go to where the boat is this weekend. If that were the case, then I presume it would be lighter than the 4 cyl.

Given the floatation and the location of self bailers in the old Easterns, weight is an issue. Evinrude and Tohatsu are about 320#

Thanks for the reply.

 

[Davidmoody]

Re: Fuel Mixture 1986 classic 50 Mercury

I have a 1976 50 HP mercury....4 cylinder engine...
Do I use 16 oz. For 6 gallons of gas..
I have to advance my idle to get the engine started ...
Should I add Berryman's B-12 for carb cleaning

 

[Davidmoody]

Re: Fuel Mixture 1986 classic 50 Mercury

I have a 1976 50 HP mercury....4 cylinder engine...
Do I use 16 oz. For 6 gallons of gas..
I have to advance my idle to get the engine started ...
Should I add Berryman's B-12 for carb cleaning

Should I adjust cable linkage in the engine