Hi, I need some advice about changing oil on a lexmoto assault 125. I have the oil and most of the other bits I need, but I am having trouble with the sealing ring for the oil filter. The manual for the bike is not very good, but it says that the sealing ring should be replaced when oil is changed. I want to change the oil asap, but until I take the filter off, I will not know what size ring I need for the replacement, can any give me any advice about this? Also can anyone tell me where the best place to get the rings are? Thanks, grateful newbie.
