Yamaha RT100M Owner's Manual page 56

7. Check and, if necessary, correct
the tire air pressure, then raise the
machine so that both of its wheels
are off the ground. Alternatively,
turn the wheels a little every month
in order to prevent the tires from
becoming degraded in one spot.
8. Cover up the muffler outlet with a
plastic bag to prevent moisture
from entering.
NOTE:
Make any necessary repairs before
storing the machine.
MACHINE CARE AND STORAGE
7-5