Motorcycle Repair: 1981 FXWG Shovelhead, chain oiler, chain slings

Question
Where does the oil line connect to the inner primary housing (for the rear chain oiling line)

Answer
The rear chain oiler runs off the oil pump, not the inner primary. If it were me I would not hook it up. It is suppose to drip motor oil on the chain and all it does is drip the oil and then the chain slings it. Clean your chain and use a good quality chain lube about every 1000 miles
Happy holidays
Mike