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Join Date: Nov 2007
Location: Chandler, Arizona
Unless there is something wrong with your cooling system, a 50/50 mix of distilled water and ethylene glycol will work fine, unless you are in a really cold climate, then I would use up to 70% ethylene glycol. Use only ethylene glycol, alcohol based coolants like DexCool will not work. They don't even work well in engines supposedly designed for them.
I live in AZ, where it is HOT (115 degrees average in the 7 month summer) and I use the 50/50 mix with no problems. If it still overheats, checked for a bad t-stat, plugged radiator, plugged coolant passages in the engine, or a bad water pump. Also check to see if the coolant fill cap is holding pressure.
It is not uncommon for engines that have has tap water in them to have everything plugged up. That stuff contains minerals and acids, and will start corrosion in an aluminum engine, and once it starts, corrosion just gets worse and worse.
I recommend the stock hoses. Yes they are expensive, but should last forever. Mine are 10 years old, and are still like new. You don't want to use a hose that might not be able to deal with the heat/pressure, or have a kink in it. OEM hoses are preformed to fit right.
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