Honda CRF250F 2020 Owner's Manual page 85

Spark Arrester
3. Use a brush to remove carbon deposits from
the spark arrester screen (6). Be careful to
avoid damaging the spark arrester screen.
The spark arrester must be free of breaks and
holes. Replace, if necessary.
(6) spark arrester screen
78
Servicing Your Honda
(6)
4. Install the new gasket, the spark arrester and
tail cover, and tighten the bolts to the speci-
fied torque:
9 lbf·ft (12 N·m, 1.2 kgf·m)