| FASTENER | TORQUE VALUE | |
| Checkvalve plug fitting: XR 1200X | 15-21 ft·lbs | 20.3-28.5 Nm |
| Checkvalve housing fastener: XR 1200X | 90-120 in·lbs | 10.3-13.6 Nm |
| Cylinder head oil feed flare fitting: XR 1200X | 22-26 ft·lbs | 29.8-35.3 Nm |
| Cylinder head oil feed line flare nut: XR 1200X | 13-17 ft·lbs | 18-23 Nm |
Removal
1. Disconnect the battery. See 1.22 BATTERY MAINTENANCE.
2. Drain oil tank. See 1.6 ENGINE OIL AND FILTER.
3. See Figure 3-32. Disconnect flare nuts (1) from each cylinder head.
Figure 3-32. Cylinder head oil feed assembly: 1. Feed oil line flare nut; 2. Feed oil line connecto; 3. Check valve assembly; 4. Fastener
4. Pull oil feed hose connector (2) straight upto remove feed hose assembly from check valve assembly (3).
5. Remove two fasteners (4) and check valve assembly (3).
6. See Figure 3-33. Carefully clamp assembly in vise and remove plug fitting (7).
Figure 3-33. Check valve components: 1. Base O-ring; 2. Check valve housing; 3. O-ring; 4. Check ball; 5. Spring cartridge assembly; 6. O-ring; 7. Plug fitting
7. Remove spring (5) and ball (4).
8. If necessary, remove flare fittings from cylinder heads.
9. Inspect components for wear or damage and replace as necessary.
Installation
1. See Figure 3-33. Install ball (4) and spring (5) into housing (2).
Note. Used O-rings can leak. Always install new O-rings when performing repairs.
2. Install new O-ring (6) on check valve plug fitting (7) and install fitting. Tighten to 15-21 ft·lbs (20.3-28.5 Nm).
3. Install new O-ring (3) in bore of housing.
4. Install housing (2) with new base O-ring (1). Tighten fasteners to 90-120 in·lbs (10.3-13.6 Nm).
5. If removed, apply LOCTITE 243 MEDIUM STRENGTH THREADLOCKER AND SEALANT (blue) to the flare fittings. Install in cylinder heads with new O-rings. Tighten to 22-26 ft·lbs (29.8-35.3 Nm).
Note. Apply a light film of oil to the end of the line before inserting it into the fitting.
6. See Figure 3-32. Push oil feed hose assembly straight down to install. Connect oil line flare nuts (1) to cylinder head flare fittings. Hold lines to prevent rotation and tighten to 13-17 ft·lbs (18-23 Nm).
7. Install and connect battery. See 1.22 BATTERY MAINTENANCE.
8. Fill oil tank. See 1.6 ENGINE OIL AND FILTER.