1979 Evinrude 4 HP Outboards Service Manual, PN 5424, Page 20Get this manual
TROUBLE ISOLATION CHART PROBLEM: STEP ENGINE MALFUNCTION DUE TO FUEL SYSTEM PROCEDURE RESULT
Fuel OKGo to step 2Check Fue Suppl Is there fuel in tank? Is the fuel mixture correct? Is the fuel fresh? Is the fuel tank clean inside? Is the ve nt screw open? Fuel questionableDrain and fill tank with correct mi xtureSee page 2-6
1No fuel or old fuelwrong mi ture 2Blocked pick-up scree 3Dirt, varnish, wate r