Re: Can someone please tell me what year this motor is and any information about
Re: Can someone please tell me what year this motor is and any information about
Not before 1980, JC!<br /><br />What you have there is probably the best small hp engine ever built. Well, in my opinion anyway.

<br /><br />Johnson 4W70 <br />Year: 1970<br />HP: 4<br />WOT RPMS: 4500 (4000-5000RPM range)<br />Displacement: 5.28 cu.in. = 86.5 ccm<br />Cylinders: 2<br />Weight: 35 lbs. = 15.9 Kg<br />Spark plugs: Champion J6C gapped at .030"<br />Oil mix: Officially, 50:1 87 octane gas to TC-W3 rated outboard oil. Due to the lack of roller bearings on the con-rods and lack of proper oil seal on the bottom main bearing, I go a little heavier. See the Oil Mix FAQ in the FAQ forum for details.<br />Lower unit oil: OMC/BRP 'HiVis' or equ. SAE 90W outboard gearcase oil.<br /><br />
Pic<br />
From the Old OMC Site.<br /><br />I've got a '72 myself.