Hey guys I have an 05 sportsman 400 and it started leaking oil, at first I thought it was the oil drain plug, but after closer inspection I found that the bottom of the plastic oil tank seems to be splitting apart. It looks lioke it is manufactured in two seperate pieces and fused together, not very well . Any one else have or herd of this problem. Seems kinda stupid to make it out of plastic. werent the old ones metal.