Derbi GPR 125 Racing, Workshop Manual

Page: 75 / 247

3 - MAINTENANCE
75
THICKNESS
1
2
3
4
5
6
7
8
9
10
11
12
THICKNESS (mm)
2,20
2,25
2,30
2,35
2,40
2,45
2,50
2,55
2,60
2,65
2,70
2,75
REFERENCE
CM222701
CM222702
CM222703
CM222704
CM222705
CM222706
CM222707
CM222708
CM222709
CM222710
CM222711
CM222712
A series of 4 and 3 digits will be found stamped onto the inside of the shim.
The 3 digits indicate the thickness, e.g.: 450 correspond to 2.45 mm.
8. Select:
- The valve shim according to the attached table.
9. Fit:
- The selected shims in which the setting was not correct.
Correct valve shims => Refit timing
STEPS TO FOLLOW TO REFIT THE TIMING (continues from
Point 9 onwards)
10. Apply:
- A little engine oil to the camshaft supports.
- Fit the camshafts onto their housings.
THE INLET CAMSHAFT BEARS
THE INSCRIPTION “A” (11).
THE EXHAUST CAMSHAFT
BEARS THE INSCRIPTION “S”
(12).
12
11
N.B.
N.B.