Yamaha VZ150Z Owner's Manual

Also see for VZ150B: Owner's manual

Contents

Mount the outboard motor on the centerline (keel line) of the boat, and ensure thatthe boat itself is well balanced. Otherwise,the boat will be hard to steer. For boatswithout a keel or which are asymmetrical,consult your dealer.1 Center line (keel line)3-3EEMU01566Mounting HeightTo run your boat at optimum efficiency,the water-resistance (drag) of the boatand outboard motor must be made as lit-tle as possible. The mounting height ofthe outboard motor greatly affects thewater-resistance. If the mounting height istoo high, cavitation tends to occur, thusreducing the propulsion and causing theengine to overheat. If the mountingheight is too low, the water-resistance willincrease and thereby reduce engine effi-ciency. Mount the engine so the anti-cavi-tation plate is about 130 mm (5 in.) abovethe bottom of the boat.NOTE:8 The optimum mounting height of theoutboard motor is affected by theboat/motor combination. Test runs atdifferent heights can help determine theoptimum mounting height.For further details, consult yourYamaha dealer or boat manufacture todetermine the proper mounting height.8 Refer to the section “TRIMMING OUT-BOARD MOTOR” for instructions onsetting the trim angle of the outboard.q 104016