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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
YZ400F Coolant Overflow
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[QUOTE="Rich Rohrich, post: 1346907, member: 16241"] Temp strips can only read the skin temperature of the cylinder, or radiator. There is a boundary layer between the skin and the moving fluid, so the skin temp doesn't provide much in the way of useful info. While a temperature gauge is a nice idea in theory, it isn't very practical in this type of application. Shock, vibration, dirt, water, etc will kill it quick. Not to mention, it's next to impossible to read in realtime. Keep the radiators clean, use the KX500 cap, fill the system with distilled water and a surfacant like Watter Wetter and you should be good to go for most MX situations that the bike was designed for. Running slow in the woods isn't what this bike was built for and the radiators are small and light as a result. For this type of riding rigging a fan system like the Honda CRF450X uses may be necessary, or using some of the cooling system components from the WR400 might help. [/QUOTE]
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Forums
Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
YZ400F Coolant Overflow
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