2003-2005 Kawasaki JetSki Ultra-150 Factory Service Manual, Page 18Get this manual
GENERAL INFORMATION 1-13 Technical Information-Engine 2Balancer
New counter balancers, one at each end of the crankshaft, decrease vibrations and make this the smoothest running Kawasaki triple ever producedWhen reassembling, it is necessary to match the marks on the balancer gear and the balancer drive gearAfter engine reassembly, the front and rear balancer oil chambers must be refilled with engine oil for lubricating the bearings and teeth, since these chambers are isolated from crankcase chambersFront end: 200 mL (12.2 cu in Rear end: 20 mL (1.2 cu in