Correct ---this motor left the factory with yellow plugs.-----So it has been modified and who knows what was done.----Can not be of any help on this one.
????----If water got inside on the bearings you risk serious damage.----Get this issue sorted out as soon as possible or yesterday !------Model # of motor.----If it is an E-tec there is no point in putting oil in the gas tank.
It should bark and roar for a second or so.------So you have no spark.----Spark at the wrong time.----No compression.----Should not be hard to figure this out.