Evinrude, 9.9HP, 4stroke, 1999, model E10R4EEB

[carol12]

Want to know how to repair the above motor. It starts easily but after 10 seconds it stalls and I noticed that the gas goes into the crankcase oil. Replaced the needle valve and seat and float but still have the same problem.

 

[racerone]

It could be a problem with the fuel pump leaking fuel into the oil.