need help finding year

dakotamoore

Cadet
Joined
Apr 13, 2009
Messages
8
model number: j8rc1c
serial number: e5396952

It is a 7.5 hp johnson seahorse and i need to know the oil to gas mixture. Also can anyone tell me how thick the pull cord is.
 

ezeke

Supreme Mariner
Joined
Sep 19, 2003
Messages
12,532
Re: need help finding year

Your 1981 Motor takes 61" of 1/8" diameter OEM #772579 starter rope.

The gas/to oil mixture is 50:1 87 or 89 US Octane to TC-W3 Oil.

The gearcase uses high viscosity marine gearcase oil such as OMC/BRP Hi Vis.
 

dakotamoore

Cadet
Joined
Apr 13, 2009
Messages
8
Re: need help finding year

thanks could you give me a online store that may sell that and do you know the oil to gas mixture
 

ezeke

Supreme Mariner
Joined
Sep 19, 2003
Messages
12,532
Re: need help finding year

Try ishopmarine.com for the rope.

The oil to gas ratio is 1:50. (or 128/50 = 2.56 ounces of oil per US Gallon)

BTW, that's an "I" in your model number, not a "1".
 
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