Polaris 600RR - Manual (Page 73)

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MAINTENANCE
Variable Exhaust System (VES)
Maintenance of the VES is limited to a periodic inspection and
cleaning of system components. Every 1000 to 2000 miles (800-1600
km), bring the machine to an authorized Polaris dealer to have the VES
disassembled, inspected, and cleaned.
NOTE: To ensure maximum performance and minimize required
maintenance, follow the oil recommendations on page 50. The use
of other lubricants may cause improper function of the valve
mechanism and increase the frequency of required cleaning due to
excessive build-up of carbon deposits.
Fuel Pump
All fuel pump service must be performed by an authorized Polaris
dealer. Do not attempt to service the fuel pump.
Fuel Filter/Fuel Lines
See your Polaris dealer for replacement of the in-tank fuel filter every
1000 miles (or annually).
Inspect the fuel lines regularly for signs of deterioration or damage.
Always check fuel line condition after periods of storage. Normal
deterioration from weather and fuel compounds may occur. Replace
worn or damaged fuel lines promptly.
CAUTION
Kinking the fuel lines or using a pliers or similar tools to remove fuel lines
may cause damage to the lines. If a fuel line has been damaged or
kinked, replace it promptly.