Yamaha F2.5A Service Manual

Also see for F25A: Service manual Owner's manual Service manual Owner's manual Owner's manual

Contents

69M3E11 i-2123456789D.Dimensions .................................................2-6Disassembling the crankcase ...................5-31Disassembling the cylinder block..............5-30Disassembling the cylinder body ..............5-24Disassembling the lower case ..................6-11Disassembling the manual starter...............5-7Disassembling the propeller shaftassembly...................................................6-8Disassembling the propeller shafthousing .....................................................6-8Disassembly and assembly ........................1-4Draining the fuel..........................................4-7Drive shaft and lower case........................6-10E.Electrical .....................................................2-5Electrical components.................................8-2F.Features and benefits .................................1-6Fire prevention ............................................1-3Fuel and blowby hoses ...............................4-2Fuel system.................................................3-3Fuel tank .....................................................4-3G.General .....................................................3-11General specifications.................................2-1General torques ..........................................2-9Good working practices ..............................1-4H.Hose routing................................................4-2How to use this manual...............................1-1I. Identification................................................1-5Idle silencer.................................................1-9Ignition system .................................... 1-6 , 8-4Installing the carburetor ..............................4-9Installing the drive shaft ............................6-13Installing the lower unit .............................6-15Installing the power unit ............................5-36Installing the propeller shaft housing ........6-14Installing the throttle cable ........................4-10Installing the tiller handle ............................7-3Installing the upper case .............................7-9Installing the valves...................................5-21Installing the water pump and shift rod .....6-14L.Low vibration tiller handle ......................... 1-11Lower unit ............................................3-9 , 6-2Lubricating the outboard motor................. 3-12M.Maintenance interval chart ......................... 3-2Maintenance specifications ........................ 2-3Manual format............................................. 1-1O.Oil check window........................................ 1-8P.Parts, lubricants, and sealants ................... 1-3Power unit............................ 2-3, 3-3 , 5-3 , 9-1Predelivery checks ................................... 1-15Propeller selection .................................... 1-15Propeller shaft housing............................... 6-7Propeller size............................................ 1-15R.Refacing the valve seat ............................ 5-18Removing the cylinder head ..................... 5-14Removing the drive shaft.......................... 6-11Removing the lower unit ............................. 6-5Removing the power unit.......................... 5-10Removing the propeller shaft housingassembly .................................................. 6-8Removing the water pump and shift rod..... 6-5Replacing the valve guides....................... 5-17S.Safety while working................................... 1-3Selection................................................... 1-15Self-protection ............................................ 1-3Serial number ............................................. 1-5Special service tools.....3-1, 4-1, 5-1 , 6-1 , 8-1Specified torques........................................ 2-8Splash lubrication system......................... 1-10Symbols...................................................... 1-2T.TCI system ............................................... 1-12Technical tips............................................ 1-12Test run .................................................... 1-18Tightening torques...................................... 2-8Tiller handle ................................................ 7-1Top view ..................................................... 8-2Index

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