4.6.5 CYLINDER HEAD CLEANING
10mm Tube Wrench
Torque Wrench
Spark Plug Wrench
Be aware, cylinder head combustion
c
ha
m
b
er
volume may vary during the race. Carbon deposits may
cause variations in cylinder head volume.
Remove spark plug. Remove the six head nuts and relative
washers.
Remove cylinder head by pulling it up carefully.
Use rubber gloves.
After cleaning the combustion chamber with fuel, reassemble
cylinder head.
Insert carefully the head on to the studs and check all o-rings are fitted in the right place. If any is
damage, change it.
Insert washers and nuts in the studs and tight them manually. Now, by using a torque wrench
tighten them alternatively at 1,2 Kgm.