Yamaha F2.5A Owner's Manual
Also see for F25A: Service manualOwner's manualService manualService manualOwner's manual
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Installation20NOTICEECM01634 Make sure that the idle hole is highenough to prevent water from enteringthe engine even if the boat is stationarywith the maximum load. Incorrect engine height or obstructionsto the smooth flow of water (such as thedesign or condition of the boat, or ac-cessories, such as transom ladders ordepth finder transducers) can create air-borne water spray while the boat iscruising. If the outboard motor is operat-ed continuously in the presence of air-borne water spray, enough water couldenter the engine through the air intakeopening in the top cowling to cause se-vere engine damage. Remove the causeof the airborne water spray.TIP: The optimum mounting height of the out-board motor is affected by the boat and mo-tor combination and the desired use. Testruns at different heights can help determinethe optimum mounting height. Consult yourYamaha dealer or boat manufacturer forfurther information on determining the prop-er mounting height. For instructions on setting the trim angle ofthe outboard motor, see page 30.EMU26973Clamping the outboard motor1. Place the outboard motor on the transomso that it is positioned as close to the cen-ter as possible. Tighten the transomclamp screws evenly and securely. Oc-casionally check the clamp screws fortightness during operation of the out-board motor because they could becomeloose due to engine vibration.WARNING! Loose clamp screws couldallow the outboard motor to fall off ormove on the transom. This couldcause loss of control and serious inju-ry. Make sure the clamp screws aretightened securely. Occasionallycheck the screws for tightness duringoperation. [EWM00642]2. If the restraint cable attachment isequipped on your engine, a restraint ca-ble or chain should be used. Attach oneend to the restraint cable attachment andthe other to a secure mounting point onthe boat. Otherwise the engine could becompletely lost if it accidentally falls offthe transom.3. Secure the clamp bracket to the transomusing the bolts provided with the out-board (if packed). For details, consultyour Yamaha dealer. WARNING! Avoidusing bolts, nuts or washers otherthan those contained in the engineZMU02012 |
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