Maintenance
Fig. 52
Fig. 53
Fig. 54
58
NOTICE!
Do not mix up the fastening screws for the recoil
starter by mistake!
Unscrew the fastening screws (1), (4) and (6) Ä Fig. 52 and
take off the recoil starter.
Align the alignment mark on the flywheel rib Ä Fig. 53 with
the top bore in the fan cover .
The piston is in top dead centre of the compression
stroke.
However, if the exhaust valve is open when aligning
the marks, the flywheel must be turned further by 360°.
Measure the valve clearance with a feeler gauge (2)
Ä Fig. 54.
To adjust the valve hold the valve adjustment screw (1) and
loosen locking nut (3).
Turn the valve adjustment screw in or out, as required.
Retighten the locking nut with a tightening torque of 7.5 Nm
(5.5 ft.lbs).
Clean the sealing faces on cylinder head cover and cylinder
block.
BT 60 / BT 65