Derbi GPR125 Workshop Manual page 76

4-stroke
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3 - MAINTENANCE
N.B.
11. Fit:
- The camshaft bridge (10).
- The 8 bolts (9) into the camshaft bridge (tighten them by
following a cross pattern).
The bolts (camshaft bridge):
1-1,2 kgf.m (10-12 N.m)
- The locking pins (8).
Ref. 864567
Set of camshaft locking pins (8).
CAUTION
12. Fit:
- The timing chain (14) over the sprockets.
- The camshaft sprockets (7).
- Apply Loctite 270-type thread sealant to the 2 bolts
(6) before fitting them.
- The camshaft sprocket washers and bolts (6).
- The sprocket locking tool (5).
The camshaft sprocket locking tool:
Ref. 865259
CAUTION
13. Adjusting the tensioner:
- Press the tab (15).
- Push the timing chain tensioner (16).
- Release the tab (15).
76
POSITION
THE
CAMSHAFT
LOCKING ORIFICES FACING
UPWARDS.
MAKE SURE THE TDC MARK ON
THE FLYWHEEL IS CORRECTLY
ALIGNED BEFORE FITTING THE
CAMSHAFT SPROCKETS.
DO NOT TIGHTEN THE SPRO-
CKETS TO THEIR TORQUE SET-
TING UNTIL THE SUBSEQUENT
TENSIONING OF THE TIMING
CHAIN HAS BEEN PERFOR-
MED.
Orifices
8
9
10
5
7
6
15
14
16

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