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Related Manuals for Yamaha Z250D
Summary of Contents for Yamaha Z250D
- Page 1 Z250D LZ250D SERVICE MANUAL 290484 60V-28197-3E-11...
- Page 2 NOTICE This manual has been prepared by Yamaha primarily for use by Yamaha dealers and their trained mechanics when performing maintenance procedures and repairs to Yamaha equipment. It has been written to suit the needs of persons who have a basic understanding of the mechanical and electrical concepts and procedures inherent in the work, for without such knowledge attempted repairs or service to the equipment could render it unsafe or unfit for use.
- Page 3 Contents General information INFO Specifications SPEC Periodic checks and adjustments Fuel system FUEL Power unit POWR Lower unit LOWR Bracket unit BRKT – Electrical systems ELEC Troubleshooting TRBL SHTG Index...
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Page 4: Table Of Contents
INFO General information How to use this manual ................. 1-1 Manual format.................... 1-1 Symbols..................... 1-2 Safety while working..................1-3 Fire prevention................... 1-3 Ventilation....................1-3 Self-protection ................... 1-3 Parts, lubricants, and sealants ..............1-3 Good working practices ................1-4 Disassembly and assembly ............... 1-4 Identification....................1-5 Applicable models ..................1-5 Serial number .................... - Page 5 Predelivery checks ..................1-22 Checking the fuel system ................1-22 Checking the gear oil level ..............1-22 Checking the engine oil level..............1-22 Checking the battery................1-23 Checking the outboard motor mounting height........1-23 Checking the remote control cables ............1-23 Checking the steering system ..............1-24 Checking the gear shift and throttle operation.........1-24 Checking the power trim and tilt system..........
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Page 6: General Information
INFO General information How to use this manual Manual format The format of this manual has been designed to make service procedures clear and easy to under- stand. Use the information below as a guide for effective and quality service. 1 Parts are shown and detailed in an exploded diagram and are listed in the components list. -
Page 7: Symbols
Symbols 7 to B in an exploded diagram indicate the grade of lubricant and the lubrication point. 7 Apply 2-stroke outboard motor oil A Apply low temperature resistant grease 8 Apply water resistant grease (Yamaha grease A) (Yamaha grease C) 9 Apply molybdenum disulfide grease... -
Page 8: Safety While Working
Parts, lubricants, and sealants Use only genuine Yamaha parts, lubricants, and sealants or those recommended by Yamaha, when servicing or repairing the out- board motor. Ventilation Gasoline vapor and exhaust gas are heavier than air and extremely poisonous. -
Page 9: Good Working Practices
Safety while working Disassembly and assembly 6. Keep a supply of clean, lint-free cloths for wiping up spills, etc. 1. Use compressed air to remove dust and dirt during disassembly. Good working practices Special service tools 2. Apply engine oil to the contact surfaces Use the recommended special service tools of moving parts before assembly. -
Page 10: Identification
INFO General information Identification Applicable models This manual covers the following models. Applicable models Z250DETO, LZ250DETO Serial number outboard motor serial number stamped on a label attached to the port clamp bracket. 1 Model name 2 Approved model code 3 Transom height 4 Serial number Approved Starting... -
Page 11: Features And Benefits
Identification / Features and benefits Features and benefits Cylinder body and cylinder head Hemispherical combustion chambers have been incorporated in the cylinder head to realize a high compression ratio of 6.2. The exhaust ports have been chamfered to reduce loss of the exhaust gases. Also, an exhaust shell has been adopted to allow exhaust gases flow out smoothly. -
Page 12: Pistons And Connecting Rods
INFO General information Pistons and connecting rods The pistons and connecting rods have been processed as follows to increase durability. • Heat resisting, lightweight aluminum forged pistons have been adopted. • Highly carbonized connecting rods have been adopted. • The piston rings have been processed with a hard chrome plating that has a thickness of 50 microns. -
Page 13: Fuel Injection Pumps
Features and benefits Fuel injection pumps Twin fuel injection pumps with pressure regulators have been adopted to obtain a high fuel pressure of 7 MPa (71 kg/cm , 1,015 psi). The fuel injection pressure is detected by the fuel pressure sensor installed on the fuel rail. Protec- tors have been incorporated on the fuel pressure sensor to reduce vibrations conducting to the sen- sor. -
Page 14: Flywheel Magnet
INFO General information Flywheel magnet A large capacity Rectifier Regulator has been adopted to obtain a charging current of 50 amperes for battery charging capabilities. An isolator has been incorporated into the Rectifier Regulator unit. NOTE: An optional battery charging cable has been made available for use with an accessory battery. É... -
Page 15: Ecm (Electronic Control Module)
168 mm (6.61 in) 126 mm (4.96 in) Z200 Z250 Z200N Z250D S60V1170 Silicon grommets (navy blue) have been adopted for installing the ECM and injector driver brackets, and to reduce vibration conducting from the engine. CAUTION: Do not apply fuel or oil to the grommets, otherwise they can be damaged. - Page 16 INFO General information A large cover has been adopted to protect the electrical components from water. S60V1190 1 Large electrical component cover The memory in the ECM has been increased from 128 bytes to 256 bytes to expand the functions of the YDIS.
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Page 17: Injector Drivers
Twin small and lightweight injector drivers have been adopted to make the surrounding components compact. Maintenance has been made easy and low cost for replacing the driver has been obtained. 175 mm (6.89 in) 170 mm (6.69 in) Z250 Z250D Z200 Z200N S60V1210 1-12 60V3E11... - Page 18 Thank you very much for your reading. Please click here and go back to the website. Then, download the complete manual instantly. No waiting.
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Page 19: Idle Silencer
INFO General information Idle silencer An idle silencer has been incorporated in the bottom cowling. Exhaust gases are led into the idle silencer from the upper case and expanded, and then dis- charged into the atmosphere. The idle hole has been positioned higher at the rear of the bottom cowling to decrease the resis- tance of the exhaust back pressure. -
Page 20: Power Unit Mounting Bolts
Features and benefits Power unit mounting bolts Bolts coated with a sealing agent have been adopted to provide a sealing function to the bolts. The sealing agent secures the axial force of the bolts after they are tightened to the specified torque, thus preventing the bolts from coming loose.