The vro combo oil and fuel pumps do fail. And no matter the condition of everything else if it is not pumping right it won't run right. If it is bad you can replace it with just a fuel pump and start mixing oil with the fuel in the tank . Its your choice...you just can't forget to add oil when you fuel. You put a little reminder like a piece of string or wire on your cap to remind you when you gas. These engines need to run rich when they first start...and for a few minutes after they start...

hope link works for you
Johnson/Evinrude Cold Start Procedures Page: 1 - iboats Boating Forums | 231251