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41
BPR 25/32 - BPR 25/40
Adjusting the valve clearance
Fig. 47
●
Hold hexagon nut 4 (Fig. 47) on the rocker arm
and loosen counter nut (3).
●
Adjust hexagon nut (4) on the rocker arm so
that the feeler gauge fits between rocker arm
and valve shaft with noticeable resistance af-
ter retightening counter nut (3).
Caution
Install the valve cover with a new gasket and
tighten the screws evenly.
Plug ventilation hose (2) into socket (5).
4.18 Cleaning the fuel screen
L
Note
Clean the fuel screen only when the engine is cold.
Caution
Fire hazard!
Gasoline is easily inflammable, do not spill any
gasoline.
When working on the fuel system do not use
open fire, do not smoke.
Fig. 48
●
Open fuel cock 1 (Fig. 48) by turning in direc-
tion of arrow.
Caution
Environmental damage!
Catch running out fuel, do not let it seep into
the ground and dispose of environmentally.
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