Dismantling The Reed Valve; Magneto - Derbi GPR 125 Racing Workshop Manual

3. Extract:
- Gudgeon pin circlip.
- Gudgeon pin.
- Piston.
- Connecting rod big end needle bearing assembly.
N.B.
BEFORE REMOVING THE CIRCLIP FROM THE GUDGEON
PIN, COVER THE BASE OF THE CYLINDER WITH A CLEAN
CLOTH TO PREVENT ANYTHING FROM FALLING INTO THE
ENGINE.
BEFORE REMOVING THE GUDGEON PIN, ELIMINATE THE
ROUGH EDGES OF THE CICLIP GROOVE AND THE HOLE.
ONCE THE ROUGH EDGING HAS BEEN ELMINATED, AND
IF THERE IS STILL DIFFICULTY IN REMOVING THE GUD-
GEON PIN, USE THE GUDGEON PIN EXTRACTOR.
Gudgeon pin extractor:
00M12501258
D D
ISMANTLING THE REED VALVE ISMANTLING THE REED VALVE
1. Extract:
- The carburettor from the engine unit.
- Closing bolts from the inlet nozzle.
- Reed valve.
M
AGNETO G O
N.B.
THE MAGNETO CAN BE EXTRACTED WHILE THE ENGINE IS
MOUNTED ON THE FRAME, BY DETACHING IT FROM THE
LOWER LEFT HAND FAIRING
1. Extract:
- Left hand crankcase cover.
- Nut (magneto) (1).
- Flat washer (2).
N.B.
RELEASE THE MAGNETO NUT WHILE HOLDING THE MA-
NETO WITH THE UNIVERSAL (MAGNETO) ROTOR HOLDER
(3).
Holding the rotor:
00005253240
49