Yamaha ttr230 User Manual

ENGINE
ENGINE MOUNTING AND ADJUSTMENTS
VALVES, ROCKER, AND CAMSHAFT
ENGINE MOUNTING AND ADJUSTMENTS
1Valve lock
2 Valve spring retainer
3 Retainer
4 Internal spring
5 External spring
6 Spring seat
7 Valve (intake)
8 Valve (exhaust)
9 Lock-nut
0 Adjuster
A Rocker
B Rocker shaft
C O-ring
D Rocker shaft
E Lock
F Valve guide
G Camshaft
H Spacer
I Plate
J Lock washer
4-48
Stem warping limit
0.01 mm
C
Valve seat width:
0.9 ~ 1.1 mm
D
Valve inclination limit:
Internal spring: 2.5° or 1.6 mm
External spring: 2.5° or 1.6 mm
B
Valve clearance:
Intake: 0.05~0.09 mm
Exhaust: 0.15~0.19 mm
A
8N.m (0,8 Kg.m; 176,78 cm.lb)
USE A NEW ONEE
USE A NEW ONE
E
USE A NEW
ONE
E
USE A NEW ONE
E
USE A NEW ONE
E
13.5N.m (1.35 Kg.m; 10 ft.lb)

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