We are all a bit anal in this forum aren't we?
To the OP:
1. The coolant level in your bikes expansion tank has absolutely no affect on the running temperature of the engine.
2. The proper level for the tank is simply exactly as it says. No less then the Min and no more then the Max. It is as simple as that.
Example
A. Fill it up to much above the Max level and as the engine heats up the coolant would spill over into the street
B. Too little coolant below the Min line would result in air being sucked into the engine coolant as it cools down.
Ok, here is an explanation;
An expansion tank, also known as "overflow bottle", is used in the cooling system of most internal combustion engines, to allow the coolant to expand with rising temperature and pressure. The tank is also called a "coolant recovery tank", since it prevents permanent loss of coolant, by allowing it to be sucked back into the cooling system as the engine cools.
^^^ Without the tank air would be in the radiator, as the coolant would expand and overflow into the street when hot, then suck air into the radiator as the engine cooled down.
To the OP:
1. The coolant level in your bikes expansion tank has absolutely no affect on the running temperature of the engine.
2. The proper level for the tank is simply exactly as it says. No less then the Min and no more then the Max. It is as simple as that.
Example
A. Fill it up to much above the Max level and as the engine heats up the coolant would spill over into the street
B. Too little coolant below the Min line would result in air being sucked into the engine coolant as it cools down.
Ok, here is an explanation;
An expansion tank, also known as "overflow bottle", is used in the cooling system of most internal combustion engines, to allow the coolant to expand with rising temperature and pressure. The tank is also called a "coolant recovery tank", since it prevents permanent loss of coolant, by allowing it to be sucked back into the cooling system as the engine cools.
^^^ Without the tank air would be in the radiator, as the coolant would expand and overflow into the street when hot, then suck air into the radiator as the engine cooled down.