Did a search but to no avail, unless I missed it. What is the correct oil filter for the 08 yz450f, can the HF141 or HF142 be used. I went to the HF website and searched for the oil filter, but said that it was not available. What are you guys using. Just purchased an 08, last week, bike is running great. I would like to use the paper element instead of the stainless steel. Thanks for your help guys.