Honda ARX1500T3DX Owner's Manual page 202

Engine Cooling System
3. Start the engine.
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.
4. Immediately after starting the engine, turn
on the water flow.
NOTICE
Running the engine without water flow for
more than 15 seconds can cause severe
engine and exhaust system damage.
194
Servicing Your Honda
5. Check that water flows out of the cooling
water bypass outlet.
If you don't see water flowing out of the
outlet, turn off the water and the engine.
Contact your Honda PWC dealer.
6. Let the engine idle for about 10 minutes
while continuing the water flow.
If the engine stops during this procedure,
immediately stop the water flow and resume
from step 3.
REAR