4. Maintenance
USE AND MAINTENANCE MANUAL
CHAPTER 4
MAINTENANCE
XEF 250 - Rev01 / 2020
70
4
5
– Install the camshafts (refer to chapter “4.4 Camshafts” on
page 65);
– Reassemble the spark plug and valve cover;
– Reassemble: Fuel tank, air filter casing, right and left
conveyors, seat.
There are 25 types of adjusting pads, ranging from
1.20 mm (0.0472 in) to 2.40 mm (0.0945 in), in
increments of 0.05 mm (0.0020 in).
For the value of the originally installed plates,
convert the last digit of the value according to the
following table.
Example:
Plate number = 148 / Rounded value =150
Last digit of pad number
Rounded value
0
0
1
0
2
0
4
5
5
5
6
5
8
10
9
10
– Install the new adjustment plates “4” and valve lifters “5”
on the relevant valves.
DO NOT force plates and/or valve lifters into their
housings during installation.
Apply molybdenum disulphide grease on the end of
the valve stems and related plates.
Install the plates with the values facing upwards.
Apply engine oil to the valve lifters and check that
they move freely when rotated.
