Yamaha F250 LF250 Owner's Manual

Also see for F250: Maintenance Guide Owner's manual Owner's manual Owner's manual Owner's manual

Contents

Trouble Recovery67A. Connect correctly.Q. Is heat range of spark plug incorrect?A. Inspect spark plug and replace it with rec-ommended type.Q. Is high pressure fuel pump drive belt bro-ken?A. Have serviced by a Yamaha dealer.Q. Is engine not responding properly to shiftlever position?A. Have serviced by a Yamaha dealer.Engine vibrates excessively.Q. Is propeller damaged?A. Have propeller repaired or replaced.Q. Is propeller shaft damaged?A. Have serviced by a Yamaha dealer.Q. Are weeds or other foreign matter tangledon propeller?A. Remove and clean propeller.Q. Is motor mounting bolt loose?A. Tighten bolt.Q. Is steering pivot loose or damaged?A. Tighten or have serviced by a Yamahadealer.EMU29432Temporary action in emergencyEMU29440Impact damageWARNINGEWM00870The outboard motor can be seriously dam-aged by a collision while operating ortrailering. Damage could make the out-board motor unsafe to operate.If the outboard motor hits an object in the wa-ter, follow the procedure below.1. Stop the engine immediately.2. Inspect the control system and all compo-nents for damage. Also inspect the boatfor damage.3. Whether damage is found or not, returnto the nearest harbor slowly and careful-ly.4. Have a Yamaha dealer inspect the out-board motor before operating it again.EMU29450Running single engineWhen using only engine in an emergency, besure to keep the unused one tilted up and op-erate the other engine at low speed.CAUTION:ECM00370If the boat is operated with one engine inthe water but not running, water may runinto the exhaust pipe due to wave action,causing engine trouble.NOTE:When you are maneuvering at low speed,such as near a dock, it is recommended thatboth engines be running with one in neutralgear if possible.