09 450 radiator question...

yea... i know i sound stupid... but how full do i fill the radiator when i go to top it off? never had a radiated bike before, all have been air cooled... do i just fill it till it comes out the over flow? thanks for reading

Leave room for expansion, I fill mine to about a quarter of an inch below the fill cap neck line.

If you just fill it to the top, expansion will "adjust" the level to the maximum amount that will stay in the heated system. Once cooled, that should settle to just over the top of the radiator core.

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