Secondary (Main) Filter; Secondary Filter Removal And Installation Procedure; Cleaning The Main Filter - Polaris Magnum 2x4 Service Manual

Air Cleaner
Trail Blazer, Trail Boss, Xpress 300,
Xplorer 300, Xplorer 400
Secondary (Main) Filter
Inspect the secondary filter weekly or after every 50
hours of operation.
CAUTION: Never operate the ATV with the filter ele-
ment removed. Dirt will enter the engine causing seri-
ous rapid wear and damage to the engine.
Secondary filter removal and installation pro-
cedure:
1. Remove ATV seat.
2. Remove primary air filter box.
3. Remove four wing nuts holding cover assembly to
secondary air filter housing.
4. Remove filter element.
5. Inspect gaskets on both sides of filter. Replace if
required.
6. Coat top and bottom gaskets of filter with a gener-
ous amount of grease.
7. Check condition of air box and replace if necessary.
Install filter into airbox. Be sure filter element seats
securely.
8. Check cover gasket and replace if required. Be
sure cover is seated properly and wing nuts are fin-
ger tightened securely.
9. Reinstall primary air filter box as per instructions
found on page 2.22.
10. Reinstall ATV seat.
Cleaning the Main Filter
Important:
It is advisable to replace the filter when it is dirty. How-
ever, in an emergency it is permissible to clean the
main filter if you observe the following practices.
1. Never immerse the filter in water since dirt can be
transferred to the clean air side of the filter.
2. If compressed air is used never exceed a pressure
of 40 PSI. Always use a dispersion type nozzle to
prevent filter damage and clean from the outside to
the inside.
NOTE: Replace the air filter every 50 hours, and poss-
ibly more often in very dirty conditions.
Polaris Industries Inc.
2.22a
MAINTENANCE
2 Stroke Engine Maintenance
5/98