Polaris SPORTSMAN 400 2003, Service Manual

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MAINTENANCE
2.2
PERIODIC MAINTENANCE
CHART
Inspection, adjustment and lubrication intervals of important components is listed in the following chart.
Maintenance intervals are based upon average riding conditions and a vehicle speed of approximately 10 mph.
Inspect, clean, lubricate, adjust or replace parts as necessary. NOTE: Inspection may reveal the need for
replacement parts. Always use genuine Polaris parts.
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CAUTION: Due to the nature of these adjustments, it is recommended that service be performed by
an authorized Polaris dealer.
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Vehicles subjected to severe use (operation in wet or dusty areas, low speed heavy load operation,
prolonged idle) should be inspected and serviced more frequently. For engine oil, short trip cold
weather riding also constitutes severe use. Pay special attention to oil level. A rise in oil level in cold weather
can indicate moisture collecting in the oil tank (500). Change oil immediately if oil level begins to rise.
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Emission Control System Service (California).
Frequency
(Whichever comes first)
Item Hours Calendar Miles
(Km)
Remarks
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Engine Oil - Level/Change 100 hrs 6 months 1000 (1600) Check Level Daily; Break In service at 1 month
E Oil Filter 100 hrs 6 months 1000 (1600) Replace with oil change
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Air Filter - Foam Pre-Cleaner Daily Daily Inspect-Clean & oil more often in dirty conditions.
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Air Filter - Main Element Weekly Weekly Inspect - Replace if necessary
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Air Box Sediment Tube - Daily Drain deposits whenever visible
" Engine Breather Filter 20 hrs Monthly 200 (320) Inspect and replace if necessary
" Oil Tank Vent Hose 100 hrs 12 months 1000 (1600) Inspect hose routing /hose condition
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Valve Clearance 100 hrs 12 months 1000 (1600) Inspect/Adjust
E Idle Speed As required As required Adjust
H Throttle Cable / ETC Switch 50 hrs 6 months 500 (800) Inspect -Adjust, Lubricate, Replace if necessary
Choke (Enricher) Cable 50 hrs 6 months 500 (800) Inspect -Adjust, Lubricate, Replace if necessary
Carburetor Float Bowl 50 hrs 6 months 500 (800) Drain bowl periodically and prior to storage
Carburetor Air Intake Ducts/Flange 50 hrs 6 months 500 (800) Inspect all ducts for proper sealing/air leaks
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Fuel System 100 hrs 12 months 1000 (1600) Check for leaks at tank cap, lines, fuel valve, filter,
pump & carburetor. Replace lines every 2 years.
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Fuel Filter 100 hrs 12 months 1000 (1600) Replace filter annually
Coolant/Level Inspection Daily Daily Replace engine coolant every 2 years
Coolant Strength / Pressure Test
System 100 hrs 6 months 1000 (1600) Inspect strength seasonally; Pressure test sys-
tem annually
Radiator 100 hrs 12 months 1000 (1600) Inspect / Clean external surface
Cooling System Hoses 100 hrs 12 months 1000 (1600) Inspect
Engine Mounts 100 hrs 12 months 1000 (1600) Inspect
Drain Recoil Housing Weekly Weekly More often if operating in wet environment
Exhaust Muffler / Pipe 100 hrs 12 months 1000 (1600)
ELECTRICAL
E Spark Plug 100 hrs 12 months 1000 (1600) Inspect - Replace if necessary
Wiring 100 hrs 12 months 1000 (1600) Inspect for abrasion, routing, security
Ignition Timing 100 hrs 12 months 1000 (1600) Inspect
Battery 20 hrs Monthly 200 (320) Check terminals; Clean; Check fluid level
Headlight Aim As required As required Adjust if Necessary
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