TOP perfomances 9928300 Mode D'emploi page 16

– Recheck the alignment of the crankshaft and camshaft timing
reference points.
– Should it be incorrect repeat the operation.
A wrong timing would cause serious damage to the engine.
– Remove the iron wire from the timing chain.
• Chain tensioner assembly
Chain tensioner with screw plug
– Unscrew the M6 screw on top of the chain tensioner (pay
attention to the O-ring and the internal spring).
– After removing the spring, compress the chain tensioner slider
by pressing the locking lever.
– Install the chain tensioner on the cylinder paying attention to
smear the two screws with a thin layer of sealant. Use the new
gasket provided with the kit.
– Insert the spring inside the chain tensioner and screw the M6
screw with a tightening torque of 10 Nm.
Chain tensioner with rubber plug
– Remove the cap and screw the internal slider screw fully home,
then fi t the chain tensioner on the cylinder, using the new gasket
supplied.
– Secure it with the two M6 screws with tightening torque of
10 ± 1 Nm (approx. 1.0 kgm).
– Turn the crankshaft by some turns and during the compression
phase bring the engine again at the top dead centre; then check
the exact alignment of the camshaft with the reference on the
head. If it is wrong, align them again.
• Valve clearance adjustment
With the engine at top dead centre during compression phase
(all the notches lined up) check and if necessary correct valve
clearance by replacing the calibrated pads or adjusting the
adjustment screws.
Intake valve clearance
Exhaust valve clearance
– Refi t the valve cover, the cover and the fan.
16
0.10 mm
0.15 mm