Protective equipment:
n
Working clothes
n
Protective gloves
1.
Park the machine in secured condition
‘Parking the machine in secured condition’ on page 57
2.
Let the engine cool down to 20 °C (68 °F).
3.
Unscrew the fastening screws (1).
4.
Remove valve cover (2) with seal (3).
5.
Set the piston to the top dead centre position of the compres-
sion stroke.
For this purpose align the alignment mark (2) on the starter
disc to the top bore (1).
Valve clearance:
Intake valve (IN)
0.08 mm (0.003 in)
Exhaust valve (EX)
0.10 mm (0.004 in)
1.
Check the valve clearance with a feeler gauge between
rocker arm (2) and valve shaft (1) on both valves, adjust if
necessary.
Preparations
Fig. 68
Fig. 69
Checking the valve clearance
Fig. 70
Maintenance – Annually
BPR 35/60
77
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