4. Maintenance
USE AND MAINTENANCE MANUAL
CHAPTER 4
MAINTENANCE
4-Strokes - Edition 00 / 2022
109
4
A
B
8
9
10
7
6
5
– Recover the guides “7” of the camshaft bearings, taking
care not to drop them inside the engine.
– Connect a metal wire “8” to the timing chain to prevent it
from falling inside the engine, then pull it off the camshaft
sprockets and tie it to the frame using the metal wire;
– Remove camshafts “9” and “10” from the head.
Installation (XXF 250 / XEF250 versions)
– Check that the top dead centre notch (TDC) “A” on the
flywheel is aligned with the reference “B” on the left
crankcase cover. If not, align it by turning the crankshaft
counter-clockwise.
– Remove bolts “5” of the camshaft supports following a
crossed pattern, starting from the outside to the inside;
– Remove the camshaft supports “6” from the head.
The camshaft cap bolts must be removed evenly to
prevent damage to the cylinder head, camshafts or
camshaft caps.