Removing outer components
Remove the engine from the frame (Removing the engine).
Remove the timing outer covers (Removing the timing outer covers).
Remove the camshafts (Removing the camshafts).
Remove the complete cylinder head unit (Removing the engine heads).
Remove the cylinder/piston assembly (Removing the cylinder/piston assembly).
Remove the generator side cover (Removing the generator cover) and the complete generator (Removing the flywheel/generator unit).
Remove the starter motor (Removing the starter motor).
Remove the clutch cover (Removing the clutch cover).
Remove the clutch unit (Removing the clutch).
Remove the oil pump (Removing the oil pump).
Remove the primary drive gear (Removing the primary drive gear).
Loosen screw (1) and remove the oil breather valve (2) from the engine with O-rings (3).
Check the condition of O-rings (3) and renew them if necessary.
Unscrew and remove the oil filter support nipple (4).
Remove mesh filter (A) from the clutch-side crankcase half (Changing engine oil and filter cartridge).
Loosen plug (23) taking care to recover washer (24).
Remove drain plug (6) with its seal (7).
Remove the neutral sensor (8) with seal (5).
Remove the cylinder head stud bolts (9) with the aid of a suitable tool.
To remove engine sensor (10), loosen screw (11) and recover washer (12).
Check the condition of O-rings (13) and renew them if necessary.