1991+ Kawasaki 650 SC Factory Service Manual, Page 96Get this manual
8-6 COOUNG AND BilGE SYSTEMS
.Connect the bilge filer hose (from the hull bottom) to the garden hoses, tum the water on, and flush it out for about minuteDuring this procedure, water will flow into the engine compartmentDo not allow large amount of water to accumutate in the engine compartment Connect the other hoses (from the hull bulkhead) to the garden hose, tum the water on, and flush it out for several minutes