2003-2005 Kawasaki JetSki Ultra-150 Factory Service Manual, Page 128Get this manual
ENGINE BOTTOM END 8-7 Coupling
Removal
Remove:(see Engine RemovalInstallation chapter) Engine
Coupling Damper Magneto Cover Starter Idle Gear Holding the boss of the front balancer gear, unscrew the couplingSpecial ToolsRotor Holder: 57001-1428 [A] Coupling Holder: 57001-1423 [B]
Be sure to hold the boss [B] of the front balancer gear [C] with the rotor holder [A]CAUTION
Do not hold the teeth of the front balancer drive gear or magneto flywheel with the rotor holderThe gear teeth or the flywheel could be damaged