Discussion in 'Sportster Models' started by jel123, Apr 11, 2009.
1990 sporster how do you drain the oil and how much does the primary hold
drain plug is on the bottom of primary cover towards rear of the bike
if its a 4 speed i think its 38 fluid ounces make sure the bike is upright when you drain it or it wont all come out
egine oil tank drain pipe is secured to a boss under the battery tray simple spring clip to remove it
as per normal if the oil is warm comes out a lot quicker
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