Sym MAXSYM 400i Service Manual page 111

6. Cylinder Head / Valve
Precautions in Operation
 This chapter is contained maintenance and service for cylinder head, valve, and camshaft as well as
rocker arm.
 Remove the engine from the frame before repairing the cylinder head.
Specification
Compression pressure
Camshaft Height of cam lobe
Rocker ID of valve rocker arm
arm
OD of valve rocker arm shaft
Valve OD of valve stem
Guide seat
Clearance between
valve stem and guide
Free length of valve
spring
Valve seat width
Tilt angle of cylinder head
Compression pressure
Camshaft Height of cam lobe
Rocker ID of valve rocker arm
arm
OD of valve rocker arm shaft
Valve OD of valve stem
Guide seat
Clearance between
valve stem and guide
Free length of valve
spring
Valve seat width
Tilt angle of cylinder head
6-2
To this chapter contents
Item
Intake
Exhaust
Intake
Exhaust
Intake
Exhaust
Inner
Outer
Item
Intake
Exhaust
Intake
Exhaust
Intake
Exhaust
Inner
Outer
LX40A
Standard
12+/2 kg/cm2
35.640~35.730
35.290~35.370
12.000~12.018
11.966~11.984
4.975~4.990
4.955~4.970
5.000~5.012
0.010~0.037
0.030~0.057
33.700
38.800
1.000
---
LX60A
Standard
12+/2 kg/cm2
36.810~36.890
36.440~36.520
13.000~13.018
12.991~13.009
4.975~4.990
4.955~4.970
5.000~5.012
0.010~0.037
0.030~0.057
33.700
38.800
1.000
---
Limit
---
35.600
35.250
12.100
11.910
4.900
4.900
5.030
0.080
0.100
1.6
0.05
Limit
---
36.770
36.400
13.098
12.936
4.900
4.900
5.030
0.080
0.100
1.6
0.05