Picture of oil plug,harley 2001 88cc road king

I cannot post you a picture but the engine oil drain plug is on the left hand front of the oil pan. It is a 5/8 inch hex plug with a 1/4 inch allen socket in its center.

Which of three oil plugs???

Touring engine oil drain plug is on the left hand side front of the oil pan facing the front.

the oil tank is on the bottom of the transmission in your RK. There are two drain plugs. The plug towards the front left of the pan is the oil drain plug. The other one is for the transmission.

Drain the oil, replace the filter, refill with three quarts of oil and you're ready to go. The dipstick has two marks on it. The upper mark is "FULL HOT", and the lower mark is "FULL COLD". Do not overfill.

Don't forget to service the transmission and the primary at their recommended intervals.

Good Luck
steve

The tank on your Road King is on the bottom of the transmission. Look underneath the transmission and you'll see two drain plugs. The plug on left front of the oil pan is the engine oil drain. The plug near the center of the pan is the transmission drain plug. Good Luck, Steve