Honda ARX1200T2 Owner's Manual page 163

NOTICE
Start the engine before turning on the water
to prevent flow through the exhaust pipe back
into the engine where it could cause severe
damage.
NOTICE
Running the engine without water flow for
more than 15 seconds can cause severe
engine and exhaust system damage.
'
If the engine stops during this procedure,
immediately stop the water flow and resume
from step 3.
(cont'd)