Yamaha ttr230 User Manual

ENGINE
ENGINE DISMOUNTING
4-23
4. Remove:
• Rocker shaft
• Rocker
************************************
************************************
1. Check:
• Valve seal
Leakage in valve seat => Check the valve
face, seat and width.
See Section
“INSPECTION AND REPAIR => VALVE
SEAT”.
NOTE:
Before removing the internal parts (valves,
springs, valve seat, etc.) from the head, check
the valve seal.
VALVES
Checking steps:
• Pour gasoline 1 into the intake and
exhaust manifolds.
• Check the valve seal. The valve seats
should be free from leakage 2.
2
1
NOTE:
Remove the rocker shaft, using
the sliding hammer 1 and weight 2.
Sliding hammer:
90890-01083
Weight:
90890-01084

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