Harley has the most screwed up oil system but I use it to my advantage. to over come the oil left in the case, I do this. Harley's oil system goes oil tank to pump to engine to filter to tank since there is no plug in the... moreHarley has the most screwed up oil system but I use it to my advantage. to over come the oil left in the case, I do this. Harley's oil system goes oil tank to pump to engine to filter to tank since there is no plug in the case, after draining the oil I put a pan under the filter before installing the filter I put 2 qts in the tank, crank the motor and watch the oil drain into the pan until it's clean. it really works. Never run your engine dry of oil!!!!!
Harley has the most screwed up oil system but I use it to my advantage. to over come the oil left in the case, I do this. Harley's oil system goes oil tank to pump to engine to filter to tank since there is no plug in the... moreHarley has the most screwed up oil system but I use it to my advantage. to over come the oil left in the case, I do this. Harley's oil system goes oil tank to pump to engine to filter to tank since there is no plug in the case, after draining the oil I put a pan under the filter before installing the filter I put 2 qts in the tank, crank the motor and watch the oil drain into the pan until it's clean. it really works. Never run your engine dry of oil!!!!!