- Tighten the clamping screw to the prescribed tor-
que.
- Set the tensioner cursor in the rest position.
- Fit the chain tensioner on the cylinder, using a
new gasket, and tight the two screws to the pre-
scribed torque.
- Insert the chain tensioning screw, together with
the spring and washer, tightening it to the prescri-
bed torque.
- Adjust the valve clearance.
- Fit the spark plug.
Electrode distance 0.8 mm
N.B.
GREASE THE END STOP RING TO PREVENT IT COMING
OUT AND FALLING INTO THE ENGINE.
Locking torques (N*m)
Timing chain tensioner support screw 11 ÷ 13
Spark plug 12 ÷ 14 Starter ground screw 7 ÷ 8.5
Timing chain tensioner slider screw 10 ÷ 14 Start
up counterweight support screw 11 ÷ 15 Timing
chain tensioner central screw 5 ÷ 6 Camshaft
retention plate screw 4 ÷ 6
Engine X9 Evolution 125
ENG - 134
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