{"id":50563,"date":"2024-05-31T14:26:24","date_gmt":"2024-05-31T12:26:24","guid":{"rendered":"https:\/\/www.vmx-service.eu\/product\/yz125-85-87-yz250-85-87-yz490-85-90\/"},"modified":"2024-05-31T14:26:24","modified_gmt":"2024-05-31T12:26:24","slug":"yz125-85-87-yz250-85-87-yz490-85-90","status":"publish","type":"product","link":"https:\/\/www.vmx-service.eu\/de\/produkt\/yz125-85-87-yz250-85-87-yz490-85-90\/","title":{"rendered":"YZ125 85-87, YZ250 85-87, YZ490 85-90"},"content":{"rendered":"<p>Nummer M390,Englischer sprache.<\/p>\n<p>Ausfuhrige beschreibung von wartung und reparaturen f\u00fcr folgende modelle:<br \/>\nYZ125 (1985-1987),\u00a0 YZ250 (1985-1987),\u00a0 YZ490 (1985-1990)<br \/>\nQUICK REFERENCE DATA CHAPTER ONE \/ GENERAL INFORMATION Manual organization \/ Service hints \/ Torque specifications \/ Safety first \/ Special tips \/ Mechanic&#8217;s tips \/ Parts replacement \/ Expendable supplies \/ Tools \/ What year is it? \/ Serial numbers \/ Specifications CHAPTER TWO \/ TROUBLESHOOTING Operating requirements \/ Troubleshooting instruments \/ Emergency troubleshooting \/ Engine starting \/ Engine performance \/ Engine noises \/ Excessive vibration \/ Two-stroke pressure test \/ Clutch \/ Transmission \/ Brakes \/ Water-cooling system (YZ125 and YZ250) \/ Front suspension and steering \/ Ignition system \/ Specifications CHAPTER THREE \/ LUBRICATION, MAINTENANCE AND TUNE-UP Pre-checks \/ Tires and wheels \/ Lubricants \/ Cleaning solvent \/ Periodic lubrication \/ Engine lubrication \/ Clutch\/Transmission oil checking and changing \/ Front fork oil change \/ Front fork air pressure \/ Periodic maintenance \/ Drive chain adjustment \/ Clutch adjustment \/ Fuel filter and shutoff valve \/ Coolant change \/ Air cleaner service \/ Engine tune-up \/ Cylinder head nuts torque \/ Spark plug \/ Ignition timing \/ Carburetor pilot screw and idle speed adjustment \/ Decarbonizing engine and exhaust system \/ Storage \/ SpecificationsCHAPTER FOUR \/ ENGINE Engine principles \/ Servicing engine in frame \/ Engine removal installation \/ Cylinder head \/ Cylinder \/ Piston, wrist pin and piston rings \/ Break-in procedure \/ Magneto \/ Reed valve assembly \/ Crankcase and crankshaft \/ Kickstarter \/ Service and adjustment \/ SpecificationsCHAPTER FIVE \/ CLUTCH AND TRANSMISSION Clutch \/ Clutch cable \/ External shift mechanism \/ Primary drive gear \/ Drive sprocket \/ Transmission \/ SpecificationsCHAPTER SIX \/ FUEL, POWER VALVE AND EXHAUST SYSTEMS Air cleaner \/ Carburetor operation \/ Carburetor service \/ Carburetor adjustments \/ Fuel shutoff valve \/ Fuel tank \/ Energy induction system (YZ490) \/ Power valve induction system \/ Exhaust system \/ Exhaust system decarbonizing \/ Exhaust system repair \/ SpecificationsCHAPTER SEVEN \/ IGNITION SYSTEM Capacitor discharge ignition \/ Magneto (outer rotor) \/ Magneto (inner rotor) \/ Magneto coil testing (all models) \/ Capacitor discharge ignition unit \/ Ignition coil \/ Spark plug \/ Engine kill switch \/ Wiring diagrams \/ SpecificationsCHAPTER EIGHT \/ COOLING SYTEM Cooling system inspection \/ Radiator \/ Water pump \/ SpecificationsCHAPTER NINE \/ FRONT SUSPENSION AND STEERING Front wheel \/ Front hub \/ Wheels \/ Tire changing \/ Tire repairs \/ Handlebar \/ Steering head \/ Front fork \/ SpecificationsCHAPTER TEN \/ REAR SUSPENSION Rear wheel \/ Rear hub \/ Driven sprocket \/ Drive chain \/ Tire changing and tire repairs \/ Spoke and rim replacement \/ Rear swing arm \/ Rear suspension (Decarbon Monocross System) \/ SpecificationsCHAPTER ELEVEN \/ BRAKES Front disc brake \/ Front brake pad \/ Front caliper \/ Front master cylinder \/ Front brake hose \/ Front brake disc \/ Bleeding the system \/ Rear brake \/ Rear brake pedal assembly \/ SpecificationsCHAPTER TWELVE \/ SUSPENSION ADJUSTMENT Yamaha factory accessories \/ Front fork \/ Rear shock absorber \/ SpecificationsINDEX WIRING DIAGRAMS<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nummer M390,Englischer sprache. Ausfuhrige beschreibung von wartung und reparaturen f\u00fcr folgende modelle: YZ125 (1985-1987),\u00a0 YZ250 (1985-1987),\u00a0 YZ490 (1985-1990) QUICK REFERENCE DATA CHAPTER ONE \/ GENERAL INFORMATION Manual organization \/ Service hints \/ Torque specifications \/ Safety first \/ Special tips \/ Mechanic&#8217;s tips \/ Parts replacement \/ Expendable supplies \/ Tools \/ What year is&hellip;<\/p>\n","protected":false},"featured_media":36951,"template":"","meta":[],"product_brand":[],"product_cat":[3599,2198],"product_tag":[],"class_list":{"0":"post-50563","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-handbucher-de-3","7":"product_cat-yamaha-de","8":"entry","9":"has-media","11":"first","12":"instock","13":"taxable","14":"shipping-taxable","15":"purchasable","16":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>YZ125 85-87, YZ250 85-87, YZ490 85-90 - VMX Service<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.vmx-service.eu\/de\/produkt\/yz125-85-87-yz250-85-87-yz490-85-90\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"YZ125 85-87, YZ250 85-87, YZ490 85-90 - VMX Service\" \/>\n<meta property=\"og:description\" content=\"Nummer M390,Englischer sprache. 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