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Join Date: Nov 2007
Location: Chandler, Arizona
The bleeder valve is completely worthless. I've changed my coolant several times, and never used it. It is only a few inches from the filler, so it doesn't really do anything. The main things are to use the right coolant mix, and pour it in very slowly, with the engine running. The thermostat needs to be open and the water pump needs to be turning so the coolant can circulate. Fill it very slowly up to the bottom of the fill neck, as the engine starts warming up, the coolant level will start to rise in the filler neck. When that happens, put the cap back on and tighten it. Fill the reservoir about half full. Then go for a ride, come back, and let the engine cool off. Do this a couple of times, and fill the reservoir to the full line. The hot engine will expel coolant into the reservoir, then suck it back in when it cools down.
I am a motorcyclist, NOT a biker.
1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
1994 Yamaha XT225 parts bike