PIAGGIO Beverly Tourer 250 i.e. Service Station Manual page 139

Beverly Tourer 250 i.e.
Engine
-Fit the end-stop ring on the automatic valve-lifter
cam and fit the automatic valve-lifter cam to the
cam shaft.
- Fit the automatic valve-lifter return spring.
- During this operation the spring must be loaded
by approximately 180°.
- Fit the automatic valve-lifter retaining dish, using
the counterweight screw fastener as a reference.
- 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 Starter ground screw
12 ÷ 14 7 ÷ 8.5
Timing chain tensioner slider screw
10 ÷ 14
Starter ground support screw Timing
11 ÷ 15
chain tensioner central screw Camshaft re-
5 - 6
tention plate screw
4 ÷ 6
ENG - 139