Contents Page Disassembling engine ..............................................................................................................26 Removing cylinder head .............................................................................................................26 Removing camshafts .........................................................................................................................26 Checking camshaft for wear ..............................................................................................................27 Removing and installing timing-chain sprockets ................................................................................27 Checking centrifugal decompressor lever ..........................................................................................27 Disassembling and assembling the centrifugal decompressor ..........................................................27 Removing cylinder head ....................................................................................................................28 Checking timing chain for wear .........................................................................................................28 Disassembling and assembling cylinder head .................................................................29 Removing valves ...............................................................................................................................29 Bore for bucket tappet ......................................................................................................................29 Checking valve guide for wear ...........................................................................................................30 Removing valve guide ........................................................................................................................30 Installing valve guide .........................................................................................................................31 Checking valve seat for wear .............................................................................................................31 Installing valve stem seal ...................................................................................................................32 Checking valve for wear ....................................................................................................................32 Installing valves .................................................................................................................................33 Removing cylinder ........................................................................................................................33 Checking cylinder .........................................................................................................................33 Removing piston ............................................................................................................................34 Disassembling piston ..................................................................................................................34 Determining clearance of piston in cylinder ......................................................................34 Determining piston ring gaps ..................................................................................................35 Determining piston pin clearance ..........................................................................................35 Assembling pistons ......................................................................................................................35 Removing ignition magneto ......................................................................................................35 Removing countershaft for starter .........................................................................................36 Disassembling and assembling freewheel .........................................................................37 Disassembling freewheel ...................................................................................................................37 Assembling freewheel .......................................................................................................................37 Removing clutch ............................................................................................................................38 Removing pressure plate ...................................................................................................................38 Removing clutch plates .....................................................................................................................38 Removing and installing oil pump ..........................................................................................39 Removing oil pump ............................................................................................................................39 Inspecting oil pump ...........................................................................................................................39 Installing oil pump .............................................................................................................................39 Removing double drive gear ....................................................................................................40 11.2