Where is the oil filter and the oil filter located on a timberwolf 250 1998model

 

Its in the side of the crank case #10.

 

Thats where it is on a lot of atvs that size. I had a Suzuki Ozark and it was in about the same place and also on my Rancher. Just make sure you keep track of everything when you pull the old filter out, you'll need to re-use all those little o-rings and the spring.