KYMCO Downtown 350i Repair Manual page 310

6.Fuel System
Downtown 350i
In order to drain the fuel from the fuel pipe and release the fuel pressure unplug
the fuel pump connecter. Start the engine and let it run until it dies of fuel
starvation. Turn the ignition switch off.
Loosen the fuel hose clamp. Slide back the clamp and free the injector fuel hose
from the fuel pump pipe. Clean up any remaining fuel immediately.
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