Inspection Of Rocker Arm; Starter Decompressor - Husqvarna TC 450 Workshop Manual

ENGINE OVERHAULING
Tap gently on the valve stem with a plastic hammer to make the cotters seat.
Hit straight on the top of the valve stem so that the valve stem
doesn't get out of true.

Inspection of rocker arm

Check the clearance between the rockerarm and the rocker arm shaft. Measure
the inner diameter of the rocker arm and the outer diameter of the rocker arm
shaft and accurately determine the clearance. Maximum clearance 0.04 in. If
greater, replace the two rocker arms. When reassembling tighten rocker-arm
axles to 25 Nm-2,55 Kgm18.4 ft/lb. (+LOCTITE 243).

Starter decompressor

Check that starter decompressor rotate freely. If there is an oil leak, change the
O-ring.
G.8 Part. N. 8000 H1344 (10-2009)