Sportsman 500 owners, Need info on oil change? Just drain the oil tank and change the filter? Please help?
You can buy the Polaris oil change kit from a dealer (about $25) that includes instructions... the process that I'll briefly outline here.
Another Important item to watch is Priming of the Dry Sump oil pump. The manual has a vague reference to this and I've found very little online - but I called Polaris and they were very helpful and faxed me the instructions - I'll also include them below.
1. Warm the engine
2. Remove the drain plug from the bottom of the oil tank (the plastic tank) and drain.
3. Put a new sealing washer on the plug and reinstall - torque to 14-17 ft lbs
4. On the back of the oil tank (opposite the drain plug) there is the oil delivery hose. Disconnect this - it might be a clamp or might use a bolt. Behind this is a fitting - remove it. It contains the oil screen, which you should clean - this is really important! Reinstall the fitting and then the hose.
5. Remove the oil filter (watch for small amount of drip). Clean the sealing suface on the engine, lubricate the oil filter gasket with some clean oil, and install the new filter. Hand tighten 1/2 turn after the gasket contacts.
6. Remove the drain plug on the lower right side of the engine crankcase, drain the remaining oil, and reinstall the plug.
7. Add new oil - about 2 qts to start with (a little less if you skipped step 6).
8. Put in Neutra and run for about 2 minutes. Check for leaks.
9. Re-check the oil level and add as needed.
OIL PUMP PRIMING. If your ATV was upside down (yup it happens!) or you disconnected the oil hose connection between the oil tank and the pump inlet, or you let it sit without oil - you may have lost the prime. Running the engine will damage it!
Look at the oil tank. There is a vent hose that comes off of it and runs up to the air box. It has a small slit in it about 3" from the tank.
1. Clamp or pinch off the vent line about 2" from the oil tank (to avoid the end of the oil tank fitting, and before the pressure relief slit mentioned above). You can use visegrips for this.
2. Run the engine for 45 - 60 SECONDS.
3. Remove the clamp from the vent line. If the line is properly bled you should hear air release. If you do not hear air the line has not bled. Once this is done, the pump is primed and ready to go.
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