Yamaha XT660R(S) Automobile User Manual


 
9 - 4
TRBL
SHTG
OVERHEATING/OVERCOOLING/
POOR BRAKING PERFORMANCE
EAS00855
OVERHEATING
ENGINE
Clogged coolant passages
Cylinder head and piston
Heavy carbon buildup
Engine oil
Incorrect oil level
Incorrect oil viscosity
Inferior oil quality
COOLING SYSTEM
Coolant
Low coolant level
Radiator
Damaged or leaking radiator
Faulty radiator cap
Bent or damaged radiator fin
Water pump
Damaged or faulty water pump
Thermostat
Thermostat stays closed
Damaged hose
Improperly connected hose
Damaged pipe
Improperly connected pipe
FUEL SYSTEM
Throttle body
Faulty throttle body
Damaged or loose throttle body joint
Air filter
Clogged air filter element
CHASSIS
Brake(s)
Dragging brake
ELECTRICAL SYSTEMS
Spark plug
Incorrect spark plug gap
Incorrect spark plug heat range
Ignition system
Faulty ECU
EAS00856
OVERCOOLING
COOLING SYSTEM
Thermostat
Thermostat stays open
EAS00857
POOR BRAKING PERFORMANCE
Worn brake pad
Worn brake disc
Air in hydraulic brake system
Leaking brake fluid
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