Fantic XEF 250 - Camshaft Removal and Installation

4. Maintenance
USE AND MAINTENANCE MANUAL CHAPTER 4
MAINTENANCEXEF 250 - Rev01 / 2020
65
4
3
4
CD
A
B
2
1
4.4 CAMSHAFTS
Removal
Remove:
– Seat, left and right conveyors, air filter casing, fuel tank;
– Remove the spark plug and valve cover;
– Remove timing reference cap “1” and crankshaft access
cap “2”.
– Turn the crankshaft counter-clockwise with a spanner,
using the appropriate access hole on the crankcase cover;
– Align the top dead centre notch (TDC) “A” on the flywheel
with the reference “B” on the left crankcase cover.
– Align the notch “C” of the exhaust camshaft and the notch
“D” of the intake camshaft with the cylinder head plane.
Align the crankshaft and camshaft references
simultaneously. It is possible to be in a situation
where the crankshaft is aligned with the references,
while the camshafts are not. In this case it is
necessary to make the crankshaft move one more
complete revolution.
– Remove the timing chain tensioner cap “3”;
– Remove the timing chain tensioner fixing screws “4”, then
remove the timing chain tensioner from the vehicle.