Service manual for the LX600-2A, document LXMT-WX-016. LX600-2A is the vehicle model code, not an engine code. Loncin lists this document as the frame service manual for the manual-gearbox CU625; a separate LX600-2E manual covers the automatic version and is not hosted here.
The engine section covers only engine removal and refitting, the oil fill and the oil filter. There is no engine internals manual for the CU625 in PDF form; Loncin publishes its KEV600 engine manual only as a Word document.
The other sections cover handlebar, exhaust, fuel tank, fuel vapour control, cooling system, front and rear wheels, front fork, rear suspension with the swingarm and drive belt, brakes, lights and footrests, with fastener torque values for each.