Removing the cylinder head
- Remove the spark plug.
- Remove the 2 side fixings shown in the figure.
- Loosen the 4 head-cylinder fastening nuts in two
or three stages and in criss-cross fashion.
- Remove the head, the two centring dowels and
the gasket.
N.B.
IN NEEDED, THE HEAD MAY BE REMOVED WITH THE
CAMSHAFT, ROCKING LEVER PINS AND FIXING BRACK-
ET. THE HEAD CAN ALSO BE REMOVED WITHOUT RE-
MOVING THE CHAIN AND THE DRIVING SHAFT CHAIN
TIGHTENER.
Removing the valves
- Using the appropriate tool fitted with an adaptor,
remove the cotters, caps, springs and valves.
- Remove the oil guards with the appropriate tool.
- Remove the lower spring supports.
CAUTION
REPLACE THE VALVES IN SUCH A WAY AS TO RECOG-
NISE THEIR ORIGINAL POSITION ON THE HEAD.
Specific tooling
020382Y011 adapter for valve removal tool
020382Y Valve cotters equipped with part 012
removal tool
020306Y Punch for assembling valve sealing
rings
Engine X9 Evolution 125
ENG - 116
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