TROUBLESHOOTING
8-3
EAS28590
OVERHEATING
Engine
1. Cylinder head(s) and piston(s)
• Heavy carbon buildup
2. Engine oil
• Incorrect oil level
• Incorrect oil viscosity
• Inferior oil quality
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
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
EAS28660
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)
• 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
EAS28670
UNSTABLE HANDLING
1. Handlebar
• Bent or improperly installed handlebar
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
• Faulty rear shock absorber spring
• Leaking oil or gas
6. Tire(s)
• Uneven tire pressures (front and rear)
• Incorrect tire pressure
• Uneven tire wear
7. Wheel(s)
• Incorrect wheel balance
• Deformed cast wheel
• Damaged wheel bearing
• Bent or loose wheel axle
• Excessive wheel runout
8. Frame
• Bent frame
• Damaged steering head pipe
• Improperly installed bearing race
EAS28710
FAULTY LIGHTING OR SIGNALING SYSTEM
Headlight does not come on
• Wrong headlight bulb
• Too many electrical accessories
• Hard charging
Summary of Contents for 2005 MT-01
Page 1: ...2005 SERVICE MANUAL MT 01 T 5YU1 AE1 ...
Page 7: ...GEN INFO 1 ...
Page 9: ......
Page 24: ...SPEC 2 ...
Page 26: ......
Page 61: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 35 1 4 3 2 ...
Page 63: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 37 3 2 1 1 A A B B B B A A ...
Page 64: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 38 1 Oil pump 2 Oil strainer crankcase 3 Oil pipe 1 ...
Page 65: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 39 3 4 2 1 A ...
Page 77: ...CABLE ROUTING 2 51 A A B D D E F G C 1 2 3 3 4 4 5 6 7 8 9 ...
Page 79: ...CABLE ROUTING 2 53 A A A A A B C D D E F A A 1 1 2 2 5 3 6 8 10 10 11 A G H I K J 4 7 9 9 9 ...
Page 83: ...CHK ADJ 3 ...
Page 120: ...CHAS 4 ...
Page 195: ...ENG 5 ...
Page 199: ......
Page 214: ...ENGINE REMOVAL 5 15 25 10 11 28 26 12 29 27 14 30 26 24 2 21 19 18 18 19 23 22 20 9 13 ...
Page 279: ...CRANKCASE 5 80 ...
Page 296: ...FUEL 6 ...
Page 298: ......
Page 312: ......
Page 313: ...ELEC 7 ...
Page 327: ...CHARGING SYSTEM 7 12 1 AC magneto 2 Rectifier regulator 4 Battery 8 Main fuse ...
Page 329: ...CHARGING SYSTEM 7 14 ...
Page 339: ...SIGNALING SYSTEM 7 24 ...
Page 381: ...FUEL INJECTION SYSTEM 7 66 ...
Page 385: ...FUEL PUMP SYSTEM 7 70 ...
Page 389: ...MUFFLER COOLING SYSTEM 7 74 ...
Page 398: ...IMMOBILIZER SYSTEM 7 83 Example fault code 52 a b a Light on b Light off ...
Page 399: ...IMMOBILIZER SYSTEM 7 84 ...
Page 400: ...ELECTRICAL COMPONENTS 7 85 EAS27970 ELECTRICAL COMPONENTS 4 3 5 7 6 8 9 10 12 13 14 15 1 2 11 ...
Page 402: ...ELECTRICAL COMPONENTS 7 87 3 4 6 5 8 7 9 11 12 13 14 15 16 17 18 1 2 10 ...
Page 424: ...TRBL SHTG 8 ...
Page 426: ......
Page 433: ......
Page 434: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...