Crankshaft; Cylinder Head - Derbi GPR 125 Racing Workshop Manual

3. Extract:
- Neutral switch.
C C
RANKSHAFT RANKSHAFT
1. Extract:
- Crankshaft with the rocker shaft.
N.B.
DETACH THE CRANKSHAFT USING THE CRANKCASE SEPA-
RATOR TOOL (2).
TIGHTEN THE CRANKCASE SEPARATOR BOLTS RIGHT
DOWN, BUT ENSURE THAT THE BODY OF THE TOOL IS PA-
RALLEL WITH THE CASING. IF NECESSARY, LOOSEN ONE
OF THE BOLTS A LITTLE TO ADJUST THE POSITION OF THE
CRANKCASE SEPARATOR.
Crankcase separator:
00M12501261
C C
YLINDER HEAD YLINDER HEAD
1. Eliminate:
- Carbon deposits sediments (and gasket remains).
N.B.
AVOID USING ANY SHARP EDGED INSTRUMENT THAT CAN
CAUSE DAMAGE AND SCRATCHING:
- IN THE SPARK PLUG THREAD
2. Inspect:

- Cylinder head

Scratches/damage => Replace.
55