Motorcycle engine lube system Harley Sportster XL1200 (2012-2023)

Oil pressure operation
All models When an engine is cold, the engine oil is more viscous (thicker). During start-up, oil pressure will be higher than normal and oil circulation will be somewhat restricted. As the engine warms to normal operating temperature, the engine...

Checking oil pressure
PART NUMBERTOOL NAME HD-41675OIL PRESSURE SENDING UNIT WRENCH HD-96921-125OIL PRESSURE GAUGE ADAPTER HD-96921-52DOIL PRESSURE TEST GAUGE KIT HD-96925-58OIL PRESSURE GAUGE ADAPTER 1. Fill oil tank to proper level. See 1.6 ENGINE OIL AND FILTER. 2....

Crankcase breathing system
XL models See Figure 3-6. On the piston downstroke, a mixture of crankcase air and oil mist is vented up the pushrod covers (1) through a breather valve (2) in each inner rocker box section. Figure 3-6. Crankcase breathing system: XL Models: 1....

Oil pump operation
The oil pump consists of two gerotor gear sets housed in one pump body. One is feed and the other scavenge (return). Each gerotor gear set has an inner and an outer gerotor. The inner gerotor has one less lobe than the outer gerotor. Both gerotors...

Oil flow: XL models
Note. See Figure 3-12.The paragraph numbers correspond with the callouts. 1. Oil is gravity-fed from the oil tank to the gerotor-style oil pump through a feed hose. Oil enters the feed section and fills a cavity located under the feed pump. See 3.20...

Oil flow: XR 1200X models
Note. See Figure 3-13. The paragraph numbers correspond with the callouts. 1. Oil is gravity-fed from the oil tank to the gerotor-style oil pump through a feed hose and internal passages. Oil enters the inlet cavity of the feed pump. See 3.21 OIL...

Precision cooling system: XR 1200X
PART NUMBERTOOL NAME HD-46503OIL LINE REMOVER, 1/2 INCH HD-49096OIL LINE REMOVER, 3/8 INCH See Figure 3-27. The oil lines used in the Precision Cooling System incorporate flanged oil lines and quick connect fittings. Quick connect fittings can be...

Return oil manifold — removal and installation
PART NUMBERTOOL NAME HD-49096OIL LINE REMOVER, 3/8 INCH FASTENERTORQUE VALUE Return oil manifold screw: XR 1200X84-108 in·lbs9.5-12.2 Nm Removal 1. Disconnect and remove battery. See 1.22 BATTERY MAINTENANCE. 2. Remove exhaust system. See 4.14...

Cylinder head oil return lines — removal and installation
PART NUMBERTOOL NAMEHD-49096OIL LINE REMOVER, 3/8 INCH FASTENERTORQUE VALUE Oil line quick connect fitting, cylinder head return: XR 1200X108-156 in·lbs12.2-17.6 Nm Oil line retainer, front, nut: XR 1200X84-108 in·lbs9.5-12.2 Nm Oil rigid line...

Cylinder head oil feed assembly
FASTENERTORQUE VALUE Checkvalve plug fitting: XR 1200X15-21 ft·lbs20.3-28.5 Nm Checkvalve housing fastener: XR 1200X90-120 in·lbs10.3-13.6 Nm Cylinder head oil feed flare fitting: XR 1200X22-26 ft·lbs29.8-35.3 Nm Cylinder head oil feed line flare...

Oil pump lines — removal and installation
PART NUMBERTOOL NAME HD-46503OIL LINE REMOVER, 1/2 INCH HD-49096OIL LINE REMOVER, 3/8 INCH FASTENERTORQUE VALUE Oil pump quick connect fitting: XR 1200X108-156 in·lbs12.2-17.6 Nm Oil rigid line retainer, rear, screw: XR 1200X90-120 in·lbs10.2-13.6...

Oil cooler — removal and installation
PART NUMBERTOOL NAMEHD-46503OIL LINE REMOVER, 1/2 INCH FASTENERTORQUE VALUE Oil cooler fastener: XR 1200X36-60 in·lbs4.1-6.8 Nm Removal 1. Disconnect the battery. See 1.22 BATTERY MAINTENANCE. 2. Drain oil tank. See 1.6 ENGINE OIL AND FILTER. 3....

Oil pump: XL models — removal, installation, disassembly and assembly
The oil pump seldom needs servicing. Check for all possible malfunctions related to oil pressure before disassembling oil pump. 1. Make sure all oil line connections are tight. Verify that lines are not pinched or damaged. 2. Check level and...

Oil pump: XR 1200X models — disassembly and assembly
The oil pump seldom needs servicing. Check for all possible malfunctions related to oil pressure before disassembling oil pump. 1. Make sure all oil line connections are tight. Verify that lines are not pinched or damaged. 2. Check level and...

Oil filter mount — disassembly and assembly
Oil is pressure-fed from the oil pump to the oil filter mount via a hose connection. Oil travels through the filter mount into the filter via outer filter holes. Adequate oil pressure activates the oil pressure indicator lamp switch in the filter...

Oil tank — removal and installation
Pressure relief valve The oil tank has a pressure relief valve in the top of the tank. If the vent line is pinched, restricted or if the tank is overfilled, excessive pressure is created. The valve opens if the pressure in the tank exceeds 10 psi...