Yamaha RD250(C) Owner's Manual page 74

P a r k i n g
W h e n parking, stop the engine and remove
the ignition key. M a k e it a habit to turn the
fuel petcock to " S T O P " w h e n e v e r stopping
the engine.
N O T E :
Select a parking place w h e r e the motorcycle
is not apt to fall.
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