My 1995 evinrude has new VRO pump, POWERPACK, Reg/Rect, vacum switch , fuel filter,, key switch and a black switch with two wires black/yellow(located in the RH lower)<br /><br />The motor start for only 5 to 30 secs and dies.<br /><br />There is no difference between the old and new parts. also changed the fuel and oil.<br /><br />The spark plugs NGK for 2 cycle motors, it can be the problem? has the power pack a circuit checking the spark plugs resistance?<br /><br />Gracias, Sud America CHILE