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Old 10-27-2007, 01:05 PM   #1
scratchmaster_J
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Replacing Coolant ?

Do you just unplug and let it all drain then plug it up and fill it up? Because Ive heard of people having air bubbles within the block thus causing the engine to over heat. Or do you treat it like you would when changing brake fluid? Its been 3 years and I havent changed it so I think its time. BTW this is for a '02 gsxr 600.
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Old 10-27-2007, 01:31 PM   #2
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take off the radiator cap, and then undo all the drain plugs. there's usually one at the bottom of the crank case and then one at the bottom of the head. after draining it all out, replace the plugs, and refill with new coolant. i usually squeeze the upper radiator hose a few times to get out as many air bubbles as i can and refill as neccessary. after that start the bike up and let it get up to operating temp. then turn it off, let it cool down a bit, and then add coolant to the full line on the overflow reservior. then keep an eye on it for a couple days to see if it overheats or if the fluid level drops. usually doen't happen if you take your time and are through. hth.
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Old 10-27-2007, 02:00 PM   #3
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take off the radiator cap, and then undo all the drain plugs. there's usually one at the bottom of the crank case and then one at the bottom of the head. after draining it all out,DONT FORGET TO FLUSH THE SYSTEM USING DISTILLED(SOFT) WATER, replace the plugs, and refill with new coolant. i usually squeeze the upper radiator hose a few times to get out as many air bubbles as i can and refill as neccessary. after that start the bike up and let it get up to operating temp SOME NEWER BIKES ALL YOU HAVE TO DO IS SNAP THE THROTTLE OPEN A COUPLE TIMES AND THAT RELEASES THE BUBBLE. then turn it off, let it cool down a bit, and then add coolant to the full line on the overflow reservior. then keep an eye on it for a couple days to see if it overheats or if the fluid level drops. usually doen't happen if you take your time and are through. hth.
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Old 10-27-2007, 02:05 PM   #4
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good additions!
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Old 10-27-2007, 02:07 PM   #5
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you might want to check your thermostat while your at it, they dont last too long.

Engine Ice is a pretty good coolant to use btw.
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Old 10-27-2007, 02:09 PM   #6
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I think its pretty cool how engine ice turns purple after long use.
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Old 10-27-2007, 02:12 PM   #7
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yeah its weird, but i never let my coolant stay in the bike too long.. I either change it regularly or something breaks and the coolant leaks
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Old 10-27-2007, 02:18 PM   #8
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Awesome.Thanks peeps!
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Old 10-27-2007, 02:24 PM   #9
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no prob
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Old 10-28-2007, 03:25 PM   #10
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Quote:
Originally Posted by SecretAgent View Post
take off the radiator cap, and then undo all the drain plugs. there's usually one at the bottom of the crank case and then one at the bottom of the head. after draining it all out, replace the plugs, and refill with new coolant. i usually squeeze the upper radiator hose a few times to get out as many air bubbles as i can and refill as neccessary. after that start the bike up and let it get up to operating temp. then turn it off, let it cool down a bit, and then add coolant to the full line on the overflow reservior. then keep an eye on it for a couple days to see if it overheats or if the fluid level drops. usually doen't happen if you take your time and are through. hth.

i would add this. before refilling get a water hose and make the water run thru a few mins to get all contaminants out'

when i had my first bike (250) i did that, and i didnt believe all the rust and i got outta the system by flushing it

try that it will take you a few minutes, then let it dran and refill
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