Husqvarna TC 250 2010 Workshop Manual page 138

ENGINE OVERHAUL
Cleaning parts ............................................................................................. G.3
Clearances .................................................................................................. G.3
Cylinder head .............................................................................................. G.3
Valve seat refacing ...................................................................................... G.4
Valve guide .................................................................................................. G.5
Valve guide replacement ............................................................................. G.5
Valve ............................................................................................................ G.7
Valve spring ................................................................................................. G.7
Valve bucket inspection ............................................................................... G.8
Valve installation .......................................................................................... G.8
Valve leak check .......................................................................................... G.9
Camshaft ................................................................................................... G.10
Timing chain and gears ............................................................................. G.10
Timing chain tensioners ............................................................................. G.10
Cylinder ......................................................................................................G.11
Piston..........................................................................................................G.11
Cylinder to piston clearance ...................................................................... G.12
Piston pin ................................................................................................... G.12
Piston rings ................................................................................................ G.13
Piston ring to cylinder clearance................................................................ G.13
Piston ring to groove clearance ................................................................. G.14
Big end axial clearance ............................................................................. G.14
Crankshaft ................................................................................................. G.15
Crankshaft straightness ............................................................................. G.15
Crankshaft ................................................................................................. G.15
Clutch ........................................................................................................ G.16
Friction plate to clutch housing clearance ................................................. G.17
Clutch spring.............................................................................................. G.17
Oil pump .................................................................................................... G.19
Shifter forks and gears .............................................................................. G.20
Selector drum ............................................................................................ G.20
Drive bushing roundness ........................................................................... G.20
Carburettor overhaul (TC) ......................................................................... G.21
"Keihin" carburettor setting (TC) ................................................................ G.21
"Keihin" carburettor adjustment (TC) ......................................................... G.22
Carburettor inspection (TC) ....................................................................... G.23
Needle assembly (TC) ............................................................................... G.24
Throttle valve (TC) ..................................................................................... G.24
Taper needle (TC)...................................................................................... G.24
Floater height (TC) .................................................................................... G.25
Floater (TC) ............................................................................................... G.25
Accelerator pump (TC) .............................................................................. G.25
Draining the fuel (TC) ................................................................................ G.26
G.2 Part. N. 8000 H1489 (10-2009)