Engine Mechanical TopicsDiscussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.
About to change oil on my 1980 sporster. I noticed that the oil line from bottom of oil tank leads directly to the oil pump. Do i disconnect hose at inlet to pump to drain oil?
I guess if i fill the hose and let new oil reach pump before starting there should not be any air trapped.
Is it important to disconect the return line and bleed out all the old oil?