Yamaha ttr230 User Manual

PROB
?
8-2
STARTING FAILURE / DIFFICULTY
COMPRESSION SYSTEM
Cylinder and head
Piston and rings
Valves, camshaft and crankshaft
POSSIBLE CAUSE
• Loose spark plug
• Loose cylinder or head
• Broken head gasket
• Scratched, worn or locked cylinder
• Ring not properly installed
• Broken or worn ring
• Locked ring
• Locked or damaged piston
• Valve not properly seated
• Broken valve spring
• Wrong valve point
• Locked camshaft
• Locked crankshaft
ELECTRIC SYSTEM
Spark plug
Ignition coil
C.D.I. system
Switch and wires
Starter motor
POSSIBLE CAUSE
• Wrong cap
• Worn electrode
• Broken cable between terminals
• Wrong thermal grade
• Defective cap
• Broken or shorted primary/secondary
winding
• Defective spark plug cable
• Broken body
• Defective C.D.I. unit
• Defective pulse coil
• Defective charging coil
• Broken crankshaft key
• Defective main switch
• Defective “ENGINE STOP” switch
• Broken or shorted wire
• Defective neutral switch
• Defective starting switch
• Defective clutch switch
• Defective starter motor
• Defective starting relay
• Defective starting bendix

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