Steveg 1,031 Posted February 16, 2021 Share Posted February 16, 2021 For some reason just checked my coolant level in expansion bottle and its on low line ( engine cold ) Normally check when bike is hot and level has always been on high line or slightly above Will check again tomorrow after a run , just wondered if its was normally for the level to raise form min to max when engine up to temp ? If I need to top up do you fill to max when cold ? Cheers Steve 1 Link to post
Scootabout 2,267 Posted February 16, 2021 Share Posted February 16, 2021 I think coolant usually needs to be checked when cold, but check the manual. 1 Link to post
Grumpy old man 4,682 Posted February 16, 2021 Share Posted February 16, 2021 Sounds about right that's why it's called an expansion chamber, when the water heats it expands and pushes out into the chamber and when it cools it's drawn back into the engine/radiator. So it sounds good to me. 2 Link to post
Steveg 1,031 Posted February 17, 2021 Author Share Posted February 17, 2021 (edited) Checked today when hot coolant level is on minimum When cold coolant level about 1/2 inch below minimum Will get some coolant to top up will top up to middle when cold Probably only needs 200 MLS Coolant was changed 1000 miles ago so probably just found a level after use Edited February 17, 2021 by Steveg 2 Link to post
trisaki 2,029 Posted February 17, 2021 Share Posted February 17, 2021 Make sure it is silicate free 1 Link to post
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