2003-2005 Kawasaki JetSki Ultra-150 Factory Service Manual, Page 137Get this manual
8-16 ENGINE BOTTOM END Crankcase
Crankcase Check Valves Inspection
crankcase Split thethe check valvesInspect The check valve [A] allows oil flow in the direction of the
arrow [B]Inspect the normal oil flow by injecting [C] high flash -point solvent in squirt can or syringeIn the following case, replace the check valve1Oil will not pass through the check valve in the normal direction2Oil will pass through the check valve in both direction
CAUTION