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I just purchased a 2014 Z400 I have to change in the coolant coolant in the reservoir seems to drop when the bike is cold is this normal thanks Greg
 

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It is normal for the res to read higher when hot, and lower when cool. The coolant expands when heated, and it will push a little out to maintain the right pressure in the system. Then when it cools down, it will reclaim that coolant.

This is normal. If the res level was only going lower, and not filling back up, or only going higher, and not dropping back down when cool, that would be showing you that you have a problem.
 
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