Honda CBR1000RR Owner's Manual page 144

Windscreen
Using plenty of water, clean the windscreen
with a soft cloth or sponge. (Avoid using
detergents or any kind of chemical cleaner on
the windscreen.) Dry with a soft, clean cloth.
NOTICE
To avoid possible scratching or other damage, use only
water and a soft cloth or sponge to clean the windscreen.
For a dirtier windscreen, use a diluted neutral
detergent with a sponge and plenty of water.
Make sure to wash off all the detergent.
(Detergent residue may cause windscreen
cracks.)
Caring for Your Motorcycle
Replace the windscreen if scratches cannot be
removed and they obstruct clear vision.
Take care to keep battery electrolyte, brake
fluid, or other chemical solvents off the
windscreen and screen garnish. They will
damage the plastic.
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