Polaris Ranger 400 HO Owner's Manual page 79

Spark Arrestor
Use the following procedure to periodically purge accumulated carbon
from the exhaust pipe.
1. Remove the arrestor
clean-out plug located on
the bottom of the muf-
fler.
2. Place the transmission in
PARK.
3. Start the engine.
4. Purge accumulated car-
bon from the system by
momentarily revving the
engine several times.
5. If carbon is expelled, cover or plug the exhaust outlet and rap on the
pipe around the clean-out plug while revving the engine several
more times.
6. If particles are still suspected to be in the muffler, elevate the rear of
the vehicle one foot higher than the front. Block the wheels.
7. Repeat steps 4 and 5 until no more particles are expelled when the
engine is revved.
8. Stop the engine. Allow the arrestor to cool.
9. Reinstall the arrestor plug and remove the outlet cover or plug.
MAINTENANCE
Clean-Out
Exhaust Outlet
Plug
75