KTM 640 Rally Engine Rebuild – Final Assembly & Engine Install | LC4 Build Ep. 7

🏍️ KTM 640 Rally Bike Build – Episode 7: Final Engine Rebuild & Installation In this episode we finish the complete KTM 640 LC4 engine rebuild and install the engine back into the freshly coated frame. From timing chain installation and oil pumps to piston rings, clutch assembly, water pump rebuild, and the final engine install — every major step is shown in detail. This video is perfect for anyone restoring a KTM 640 LC4, building a rally bike project, or learning advanced motorcycle engine rebuild techniques. In This Episode: -Timing gear & timing chain installation -Oil pump inspection and mounting -Balancer shaft & primary gear alignment -Full clutch rebuild with new plates and springs -Piston, cylinder honing & piston ring gap measurement -Cylinder head installation & camshaft timing -Water pump rebuild (bearings & seal replacement) -Flywheel, stator & side cover installation -New Oberon clutch slave cylinder install -Complete engine installation into the frame -Torque specs, Loctite usage & practical workshop tips Whether you are working on a KTM 640 Adventure, Enduro, or Rally project, this episode covers the final phase of a full LC4 engine rebuild from start to finish. 👉 Next Episode: Rally tank installation and frame build — harder than expected!