1998 evinrude 70 start problem.

[Hunterjim]

I dont run the motor for several days to weeks at a time. it will not start and appears there is Injection oil in the carbs. I can flip the enrichment lever and that usually allows it to start. I've read the cap on the oil reserve tank should have a breather valve, and if blocked can cause oil to leak into carbs? Any suggestions? The tank was replaced with a used one and I think that's when the problems started. Help!

[Elton Smith]

I don't trust oil injectors.I just premix my gas and go on.