2003-2005 Kawasaki JetSki Ultra-150 Factory Service Manual, Page 137Get this manual

2003-2005 Kawasaki JetSki Ultra-150 Factory Service Manual, Page 137

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8-16 ENGINE BOTTOM END Crankcase
Do not use compressed air on the valve since doing so would damage the valve spring

Upper Crankcase Check Valve RemovalInstallation

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