| I have never put any water in the white plastic tank, and water has never appeared in it. The rad is always full when checked. This applies to two 851/888s i have owned over a number of years and many thousands of miles and several track days.
The rad cap seals the rad, so I cannot see what the tank is for except to catch any overflow.
Am I missing something?
Douglas | 
17-Jan-2009, 22:57 
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