Air Box Sediment Tube; Breather Filter Inspection; Breather Hose; Recoil Housing - Polaris A12MH46AX Service Manual

MAINTENANCE

Air Box Sediment Tube

Periodically check the air box drain tube located toward
the rear of the machine. Drain whenever deposits are
visible in the clear tube.
1. Remove drain plug from end of sediment tube.
2. Drain tube.
3. Reinstall drain plug.
NOTE: The sediment tube will require more frequent
service if the vehicle is operated in wet conditions or at
high throttle openings for extended periods.

Breather Filter Inspection

Four-cycle ATV engines are equipped with a breather
filter. The in-line filter is similar in appearance to a fuel filter,
and is visible on the left side of the engine.
In-line breather filters can be installed in either
direction.
2.20
Sediment Tube
Drain Plug
9923412 - 2012 Sportsman 400/500 and EFI Tractor Service Manual
© Copyright 2011 Polaris Sales Inc.

Breather Hose

1. Be sure breather line is routed properly and secured
in place. CAUTION: Make sure lines are not kinked
or pinched.
NOTE: In-line breather filter service life is extended
when the foam air box pre-filter is in place and
maintained properly. Never operate the engine without
the pre-filter.

Recoil Housing

B
Recoil Drain
• Drain the housing
moisture.(If Equipped)
• Drain the recoil housing after operating the ATV in
very wet conditions. This should also be done
before storing the ATV. The drain screw is located
at the bottom of the recoil housing. Remove the
screw with a 10 mm wrench. Reinstall screw once
housing has been drained.
• CAUTION: Make sure the manual start handle (B)
is fully seated on the recoil housing, especially
when travelling in wet areas. If it is not sealed
properly, water may enter the recoil housing and
damage components.
• Water will enter the recoil housing if the starter
handle (B) is disengaged from the rope guide
when under water.
• After travelling in wet areas the recoil housing and
starter should always be drained completely by
removing the recoil.
• Do not open the crankcase drain unless the
engine has ingested water. Some engine oil will be
lost if crankcase drain is opened.
• If recoil handle (B) seal has been damaged, the
handle should be replaced.
periodically to remove