It sounds to me like your leak is the seal on the KIPS shaft, that would be the right area. If it is then thats more of an annoyance than a serious issue. Pull off the pipe, and the little gray cover, inside is the shaft for the KIPS system, there is a seal going into the cylinder, I've seen them leak, it can be replaced without pulling the motor. 1 word of caution, the seal is held in place with a phillips screw, use a hand impact driver or you'll strip it.