I have an '03 Honda Shadow ACE VT750 and I am changing the radiator. The radiator is drained, but how do I drain the coolant out of the engine to change it all? Also, is there anything else I need to do after I fill it back up?How do I drain the coolant out of my motorcycle?The drain bolt on the water pump cover will fully drain the cooling system.
Water pump cover - left side of engine - radiator hose goes to it - drain bolt has a sealing washer on it.
Let the bike run for a few minutes with the radiator cap off, to let the air escape.