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TROUBLESHOOTING
9-3
2. Engine oil
• Incorrect oil level
• Incorrect oil viscosity
• Inferior oil quality
Cooling system
1. Coolant
• Low coolant level
2. Radiator
• Damaged or leaking radiator
• Faulty radiator cap
• Bent or damaged radiator fin
3. Water pump
• Damaged or faulty water pump
• Thermostat
• Thermostat stays closed
4. Oil cooler
• Clogged or damaged oil cooler
5. Hose(s) and pipe(s)
• Damaged hose
• Improperly connected hose
• Damaged pipe
• Improperly connected pipe
Fuel system
1. Throttle body(-ies)
• Faulty throttle body(-ies)
• Damaged or loose throttle body joint
2. Air filter
• Clogged air filter element
Chassis
1. Brake(s)
• Dragging brake
Electrical system
1. Spark plug(s)
• Incorrect spark plug gap
• Incorrect spark plug heat range
2. Ignition system
• Faulty ECU
EAS28610
OVERCOOLING
Cooling system
1. Thermostat
• Thermostat stays open
EAS28620
POOR BRAKING PERFORMANCE
• Worn brake pad
• Worn brake disc
• Air in hydraulic brake system
• Leaking brake fluid
• Faulty brake caliper kit
• Faulty brake caliper seal
• Loose union bolt
• Damaged brake hose
• Oil or grease on the brake disc
• Oil or grease on the brake pad
• Incorrect brake fluid level
EAS28650
FAULTY FRONT FORK LEGS
Leaking oil
• Bent, damaged or rusty inner tube
• Cracked or damaged outer tube
• Improperly installed oil seal
• Damaged oil seal lip
• Incorrect oil level (high)
• Loose damper rod assembly
• Cracked or damaged cap bolt O-ring
Malfunction
• Bent or damaged inner tube
• Bent or damaged outer tube
• Damaged fork spring
• Worn or damaged outer tube bushing
• Bent or damaged damper rod
• Incorrect oil viscosity
• Incorrect oil level
EAS28680
UNSTABLE HANDLING
1. Handlebars
• Bent or improperly installed right handle-
bar
• Bent or improperly installed left handle-
bar
2. Steering head components
• Improperly installed upper bracket
• Improperly installed lower bracket
(improperly tightened ring nut)
• Bent steering stem
• Damaged ball bearing or bearing race
3. Front fork leg(s)
• Uneven oil levels (both front fork legs)
• Unevenly tensioned fork spring (both
front fork legs)
• Broken fork spring
• Bent or damaged inner tube
• Bent or damaged outer tube
4. Swingarm
• Worn bearing or bushing
• Bent or damaged swingarm
5. Rear shock absorber assembly(-ies)
• Faulty rear shock absorber spring
• Leaking oil or gas
Summary of Contents for 2009 YZF-R1 (Y)
Page 1: ...SERVICE MANUAL YZF R1 Y 2009 14B 28197 E0 ...
Page 6: ......
Page 8: ......
Page 66: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29 EAS20410 LUBRICATION DIAGRAMS ...
Page 68: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 31 ...
Page 70: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 33 ...
Page 72: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 35 ...
Page 73: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 36 1 Main axle 2 Oil water pump assembly ...
Page 74: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 37 ...
Page 75: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 38 1 Main axle 2 Oil delivery pipe 2 3 Drive axle ...
Page 76: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 39 ...
Page 78: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 41 ...
Page 80: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 43 ...
Page 81: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 44 1 Balancer shaft 2 Crankshaft ...
Page 82: ...COOLING SYSTEM DIAGRAMS 2 45 EAS20420 COOLING SYSTEM DIAGRAMS ...
Page 84: ...COOLING SYSTEM DIAGRAMS 2 47 ...
Page 85: ...COOLING SYSTEM DIAGRAMS 2 48 1 Radiator cap 2 Radiator 3 Radiator fan 4 Oil cooler ...
Page 86: ...CABLE ROUTING 2 49 EAS20430 CABLE ROUTING ...
Page 88: ...CABLE ROUTING 2 51 ...
Page 90: ...CABLE ROUTING 2 53 ...
Page 92: ...CABLE ROUTING 2 55 ...
Page 94: ...CABLE ROUTING 2 57 ...
Page 96: ...CABLE ROUTING 2 59 ...
Page 98: ...CABLE ROUTING 2 61 ...
Page 100: ...CABLE ROUTING 2 63 ...
Page 102: ...CABLE ROUTING 2 65 ...
Page 104: ...CABLE ROUTING 2 67 ...
Page 106: ...CABLE ROUTING 2 69 ...
Page 108: ...CABLE ROUTING 2 71 ...
Page 110: ...CABLE ROUTING 2 73 ...
Page 112: ...CABLE ROUTING 2 75 ...
Page 115: ......
Page 151: ...PERIODIC MAINTENANCE 3 36 ...
Page 152: ...PERIODIC MAINTENANCE 3 37 ...
Page 242: ...CHAIN DRIVE 4 87 ...
Page 257: ...ENGINE REMOVAL 5 12 Installed depth of gasket c 3 5 mm 0 14 in ...
Page 290: ...PICKUP ROTOR 5 45 Yamaha bond No 1215 Three Bond No 1215 90890 85505 ...
Page 360: ...WATER PUMP 6 15 ...
Page 382: ...AIR INDUCTION SYSTEM 7 21 EAS27040 AIR INDUCTION SYSTEM ...
Page 388: ...AIR INDUCTION SYSTEM 7 27 ...
Page 391: ......
Page 392: ...IGNITION SYSTEM 8 1 EAS27090 IGNITION SYSTEM EAS27110 CIRCUIT DIAGRAM ...
Page 398: ...ELECTRIC STARTING SYSTEM 8 7 EAS27160 ELECTRIC STARTING SYSTEM EAS27170 CIRCUIT DIAGRAM ...
Page 404: ...CHARGING SYSTEM 8 13 EAS27200 CHARGING SYSTEM EAS27210 CIRCUIT DIAGRAM ...
Page 407: ...CHARGING SYSTEM 8 16 ...
Page 408: ...LIGHTING SYSTEM 8 17 EAS27240 LIGHTING SYSTEM EAS27250 CIRCUIT DIAGRAM ...
Page 412: ...SIGNALING SYSTEM 8 21 EAS27270 SIGNALING SYSTEM EAS27280 CIRCUIT DIAGRAM ...
Page 419: ...SIGNALING SYSTEM 8 28 ...
Page 420: ...COOLING SYSTEM 8 29 EAS27300 COOLING SYSTEM EAS27310 CIRCUIT DIAGRAM ...
Page 423: ...COOLING SYSTEM 8 32 ...
Page 424: ...FUEL INJECTION SYSTEM 8 33 EAS27330 FUEL INJECTION SYSTEM EAS27340 CIRCUIT DIAGRAM ...
Page 494: ...FUEL PUMP SYSTEM 8 103 EAS27550 FUEL PUMP SYSTEM EAS27560 CIRCUIT DIAGRAM ...
Page 498: ...IMMOBILIZER SYSTEM 8 107 EAS27640 IMMOBILIZER SYSTEM EAS27650 CIRCUIT DIAGRAM ...
Page 507: ...IMMOBILIZER SYSTEM 8 116 ...
Page 508: ...ELECTRICAL COMPONENTS 8 117 EAS27972 ELECTRICAL COMPONENTS ...
Page 510: ...ELECTRICAL COMPONENTS 8 119 ...
Page 512: ...ELECTRICAL COMPONENTS 8 121 EAS27980 CHECKING THE SWITCHES ...
Page 536: ...ELECTRICAL COMPONENTS 8 145 ...
Page 543: ......
Page 544: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...