Tim,

Your 5 nipple 140 FZ might be a 140 L (Limited). My 140 L's have 6 nipples: 2 up front, 2 on the left side (with short tubing line connecting these two) and 2 in the back. Also, YS didn't mark their FZ's with an L. The only way to tell you have an L is by the 2 nipples on the back of the crankcase. The nipple closest to the engine crankcase centerline is for the pressure line back to the tank.

Steve