Suzuki RM250 Owner's Service Manual page 23

2-8 PERIODIC MAINTENANCE
• Install the air cleaner box lid properly as shown.
NOTE:
Running the engine without the air cleaner box lid can vary the
carburetion. Do not run the engine without the air cleaner box
lid.
NOTE:
Follow the instructions below to keep the air cleaner element dry
when cleaning the motorcycle.
* Cover the element with a plastic bag.
* Install the seat.
* Cover the inlet holes on the frame covers to prevent water
from coming into the air cleaner box.
* Do not spray high pressure water to the air cleaner box.
Lid
Cap to the front.
Air cleaner
box front wall