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How to flush 2004 R1 coolant and replace with Water wetter

7781 Views 25 Replies 20 Participants Last post by  THECLAYTON
can someone tell me how to flush the coolant from a 2004 R1. I want to replace it with Water Wetter for track days.

Thanks
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Reove the left lower fairing, loosen the right mid-fairing and partially pull it away to gain access to the radiator cap (or if you prefer, remove the right mid-fairing completely, but you don't have to). Place a pan under the coolant drain plug and remove it with a 10mm socket. Open the radiator cap and the fluid will drain. Place a MityVac into the coolant reservoir (remove the black rubber reservoir cap) located on the right side in front of the catalytic converter, and drain the reservoir. Use a funnel to run about a gallon of distilled water throught the radiator and allow it to drain out. Do this until clear water drains so that you have removed all of the antifreeze. Put the 10mm drain bolt and copper washer back and torque to spec. You are supposed to use a new copper washer, but I have not had problems reusing the old one. Prepare a mixture of distilled water and Water Wetter (10z WW per qt of water) and add it to the radiator via the funnel until full. Put some into the reservoir up to the full mark. Turn on the engine for a moment, the level in the radiator will likely decrease slightly. Add a little more water/WW until the radiator is topped off. Put the radiator cap back on. If any doubt about the cap, test it and replace if out of spec. Put the reservoir cap back on. Start the motor, allow it to run until it reaches operating temp and the fans come on. CHeck for leaks. Observe temp gauge. Turn the motor off. You can let the bike sit until the engine cools down completely, and then double check ther radiator level, but in my experience, you do the above and then all you need to do is replace the body work and you are good to go.
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Thansk for the info, Excellent !!!

Is the drain bolt the one located right under the left side on the "Metal" pipe ???

Thanks Again !!
joeblow said:
Thansk for the info, Excellent !!!

Is the drain bolt the one located right under the left side on the "Metal" pipe ???

Thanks Again !!
You're welcome, and yes, you located the drain bolt.
Dude just add a bottle to your existing coolant .... unless your riding track !!
Dude, what part of "for track days" did you not read?
Eyespy said:
Reove the left lower fairing, loosen the right mid-fairing and partially pull it away to gain access to the radiator cap (or if you prefer, remove the right mid-fairing completely, but you don't have to). Place a pan under the coolant drain plug and remove it with a 10mm socket. Open the radiator cap and the fluid will drain. Place a MityVac into the coolant reservoir (remove the black rubber reservoir cap) located on the right side in front of the catalytic converter, and drain the reservoir. Use a funnel to run about a gallon of distilled water throught the radiator and allow it to drain out. Do this until clear water drains so that you have removed all of the antifreeze. Put the 10mm drain bolt and copper washer back and torque to spec. You are supposed to use a new copper washer, but I have not had problems reusing the old one. Prepare a mixture of distilled water and Water Wetter (10z WW per qt of water) and add it to the radiator via the funnel until full. Put some into the reservoir up to the full mark. Turn on the engine for a moment, the level in the radiator will likely decrease slightly. Add a little more water/WW until the radiator is topped off. Put the radiator cap back on. If any doubt about the cap, test it and replace if out of spec. Put the reservoir cap back on. Start the motor, allow it to run until it reaches operating temp and the fans come on. CHeck for leaks. Observe temp gauge. Turn the motor off. You can let the bike sit until the engine cools down completely, and then double check ther radiator level, but in my experience, you do the above and then all you need to do is replace the body work and you are good to go.
thanx eyespy...this just cut my weekend wrenching time in half. Thill watch-out! :bow
bmw528i said:
Dude just add a bottle to your existing coolant .... unless your riding track !!
Water Wetter works better when mixed with just distilled water. When adding to 50/50 it only drops temps a few degrees.
Hey guy's
I live in australia and have never heard of water wetter.One of the above posts mentioned that it drops temp's by a few deg. Does it still have anti corrosive properties. any info would be good as this product sounds interesting. thanks
Look at www.redlineoils.com

See if anyone in aus. is a distributor.

Yes it works best when mixed with just distilled water and it does have anti-corrosive lubricating properties.
Hood Ornament said:
Dude, what part of "for track days" did you not read?
Just use distilled water its cheap and most tracks wont let u us water wetter.:thumbup
Thanks EYESPY..did a search and found this .
Eyespy said:
You're welcome, and yes, you located the drain bolt.


Successful Coolant Change today after reading this thread. BTW, I substituted Engine Ice in place of stock coolant and ripped it on Angeles Crest Hwy just now on my new Pilot Powers. I am in Love again. such a confidence inspiring tire.

This Forum's making me sucha good motorcycle mechanic, hehe. Thanx to forum bros for sharing the wisdom!

Just to clarify to those who don't know. The drain bolt is shown as below.

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is there any way to add coolant to the resovior without removeing the farings?
BSTON122 said:
is there any way to add coolant to the resovior without removeing the farings?
If you are referring to the a lil white box coolant reservoir, you dont have to remove any fairings for the reservoir, but need to remove the rear brake reservoir holder in order to reach into it.
:thumbup THANKS
I'm getting ready to do this now and can you tell me approximately how many bottles of Water Wetter I would need? I don't want to be in the middle of the process and find out I need to run out and get some more WW. Thanks.
Your cooling system holds a little over 2 1/2 quarts. At 1 oz. Water-Wetter per quart of water, a 12 oz. bottle will last you a long time.
Are you guys just draining the system from the drain plug or are you taking off the lower radiator hose as well, in order to get a little bit extra out?

I ask because I have a Clymer manual for my 2001 and it states to drain the system via the drain plug as mentioned above, but it also says to remove the lower rad hose and drain it as well. I'm not sure how much extra you'd got out of the system, but is it necessary?

Thanks,
Scott
What's wrong with using normal tap water for the flush and then using distilled water with water wetter after all the antifreeze is removed.
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