atv oil changes.air filter

[spispeza]

i have a polaris sportsman 400 atv.how often should i be changing the oil?im currently running 0w30 synthetic oil.changed every 200 miles.what non synthetic oil weight for year round use.does the oil have to be 4 cycle rated?or can you use any type of motor oil?
how often should the air filter be changed?based on the condition of the filter.or mileage?thanks

[JD11]

Don't know about yours, but the owner's and shop manual for my 2005 Sportsman 500 HO calls for every 1000 miles or 100 hours using Polaris's 0-40wt. Synthetic.   I always use it for the reasons I posted on the Yamalube oil thread about 6-7 threads down.

As far as the air filter goes, that totally depends on how much dusty riding conditions you subject it to.   I bought my Sportsman about a year ago and was surprised regarding the complex design and engineering they put into ATVs nowdays, meaning it would pay you to get an owner's manual so you service it correctly.  For example, if you have the ON DEMAND four wheel drive, it's real important to use the correct front differential fluid rather than any diff. gear lube.