Yamaha ttr230 User Manual

PROB
?
8-6
BRAKE FAULT/
LEAKAGE ON THE FRONT FORK
BRAKE FAULT
DEFECTIVE BRAKING SYSTEM
Disc brake
Drum brake
POSSIBLE CAUSE
• Worn brake pads
• Worn brake disc
• Air in brake fluid
• Brake fluid leakage
• Defective master cylinder cover
• Defective caliper retainer
• Loose coupling screw
• Damaged brake hose
• Oil or grease on brake disc
• Oil or grease on brake pad
• Improper brake fluid level
• Worn brake shoe
• Worn brake drum
• Broken shoe spring
• Oil or grease on brake shoe
• Oil or grease on brake drum
LEAKAGE ON THE FRONT FORK AND MALFUNCTION
OIL LEAKAGE POSSIBLE CAUSE
• The internal tube is corroded, bent or damaged
• The external tube is damaged or broken
• Damaged retainer lip
• Improperly installed retainer
• High oil level
• Loose stem setscrew
• Damaged spring seat O-ring
• Loose drain bolt
• Damaged drain bolt gasket
MALFUNCTION POSSIBLE CAUSE
• The internal tube is damaged, deformed
or bent
• The external tube is deformed or bent
• Damaged fork spring
• The guide bushing is damaged or worn
• The damper stem is damaged or bent
• Improper oil viscosity
• Improper oil level

Yamaha ttr230 Specifications

General

Engine Type	223cc air-cooled SOHC 4-stroke; 2 valves
Bore x Stroke	70.0mm x 58.0mm
Compression Ratio	9.5:1
Ignition	CDI
Transmission	Constant-mesh 6-speed; multiplate wet clutch
Final Drive	Chain
Rear Suspension	Single shock; 8.7-in travel
Front Tire	80/100-21
Rear Tire	100/100-18
Length	81.3 in
Width	31.5 in
Seat Height	34.3 in
Wheelbase	54.5 in
Ground Clearance	11.6 in
Front Suspension	Telescopic fork
Rear Brake	Drum