Rotax 912 i Series Maintenance Manual page 187

DISASSEMBLY
DISASSEMBLING THE CYLINDER HEAD
The cylinder head should be disassembled on a
clean surface. There must be enough space to
lay out the removed parts to ensure that all the
parts can be laid out and allocated according to
their installation position.
NOTICE
WARNUNG
Danger of consequent damage to engine!
During assembly, the valves and all the associa-
ted components must be re-installed in their ori-
ginal position.
Mark the valves and the associated com-
ponents correspondingly before removing them.
ROCKER ARM - REMOVAL
NOTICE
WARNUNG
The rocker arm shaft should never be forced
out.
Step Procedure
1 Pull out the rocker arm shaft and take out
the two rocker arms.
Fig. 9
1. Rocker arm shaft
3. Left rocker arm
Effectivity: 912 i Series
Edition 1/Rev. 0
BRP-Powertrain
MAINTENANCE MANUAL
2. Right rocker arm
VALVE - REMOVAL
See Fig. 10.
NOTICE
WARNUNG
Before taking out the valves, remove any burrs
on the valve stem to avoid damage to the stem
seal or guide. Mark the valves accordingly.
Step
1 Compress the valve springs using the
valve spring mounting device part no.
877380 and valve spring collet.
2 Removal of the valve cotters.
3 Release the valve spring tension.
4 Remove the valve spring retainer and
valve springs with the washer and pull out
the valve.
5 Repeat this process for the second valve
and clean the cylinder head.
There is a valve stem seal only on the
NOTE:
intake valve.
Fig. 10
1. Cylinder head assy.
3. Valve spring mounting
device part no. 877380
Procedure
2. Valve spring collet
4. Valve cotter
72-30-00
Page 9
July 01/2012