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40 BPR 25/32 - BPR 25/40
4.17 Checking, adjusting the
valve clearance
L
Note
Check and adjust only when the engine is cold.
Fig. 43
● Pull spark plug socket 1 (Fig. 43) off.
● Pull ventilation hose (2) off.
● Remove valve cover (3) with seal gasket (4).
Fig. 44
● Set the piston to top dead centre position of
the compression stroke.
● For this purpose align triangle mark 1 (Fig. 44)
on starter disc to the top bore (2).
Checking the valve clearance
Fig. 45
● Check the valve clearance with a feeler gauge
on both valves 1 (Fig. 45).
Fig. 46
L
Note
Exhaust valve 1 (Fig. 46) = valve clearance
0,20 mm
Intake valve (2) = valve clearance 0,15 mm
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