Polaris TRAIL BOSS 325 2001 Manual page 137

CARBURETOR CLEANING
1. Thoroughly clean the carburetor body, jets, and all passages with carburetor cleaner or electrical contact
cleaner.
WARNING
Protect eyes from contact with cleaner. If you get cleaner in your eyes or if you swallow cleaner, see your doctor
immediately. Some carburetor cleaners are extremely caustic and extended periods of soaking can loosen the
adhesive sealer on the passage drill-way plugs. Do not soak rubber or plastic components (such as the vacuum
slide diaphragm, needle seat screen, or O-Rings in caustic cleaning solutions. Irreparable damage may occur.
Do not use agitator type carburetor cleaning equipment. Rubber parts must be cleaned with mild detergent and
hot water only.
2. If the carburetor is extremely dirty or contaminated with fuel residue and varnish, soak for short periods only in
carburetor cleaner, and rinse in hot water.
3. Replace the jets if they are extremely dirty or have a buildup of fuel residue or bacterial growth. Even a small
amount of residue will reduce the flow characteristics of the jet.
4. Verify all passages and jets are unobstructed by spraying electrical contact cleaner through the passages.
CAUTION: Do not use wire or welding tip cleaners on the jets as the orifice size may be altered.
5. Use low pressure air to dry carburetor body and all components.
FUEL SYSTEM/CARBURETION
4.11