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Discussion Starter #1
Ok, so I am reading some other threads in here about properly flushing out the coolant before adding engine Ice. I could not find an exact how to on how to do this, so here is what I did before changing to Engine Ice:

1) Removed the oem water pump and replaced with a DC pump
2) I took both radiators off and flushed them with water before puting them back on (I was adding a 3rd fan)
3) let whatever coolant was in the bike with those parts removed drain out

Should I have done more than that?! I'm all sorts of freaked out now about the two different kinds of coolant mixing... If I need to do something else I will drain it all again and flush properly, just let me know. It's firggin 100F down here in FL and I don't need any issues. Thanks.
 

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The amount left inside would be very small. There's two small drain holes at the front of the engine if you remove them also, that would be as much as you could do. The other option is to run some water through the bike, but then you'd have to remove both radiators again, or you can do it with a hose, I think removing the thermostat should allow for you to do that.
 

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Discussion Starter #3
So am I worrying about nothing, or should I drain it all again and flush it out with some water? I'd just hate for it to turn bad then end up messing up something else. It took one full 1/2 gal, then another 2/3-3/4 of the other 1/2 gallon of engine ice when I filled it up... was more than I thought it would take.
 

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Engine Ice recommends flush with 50%white vinegar and 50%distilled water.You can do this next time.
 

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Curtis, I believe you are good. When we did Dave's bike, we did run water through the engine by using the radiator hose, but I don't think that was necessary.
 

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Curtis, I believe you are good. When we did Dave's bike, we did run water through the engine by using the radiator hose, but I don't think that was necessary.
Spot on Chuck, I was just a bit worried about giving advice to someone I don't know too well yet.

Because we are not allowed to run anything other than distilled water in our race bikes, I run a corrosion inhibiter when I do track days where anything is legal. But a hose flush before race weekends does a good clean and my engine inside are in great condition.
 

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The tough part is that lower radiator. You either have to remove it and dump the contents, or you can pull off a hose and siphon out the contents, or you can pull off both hoses and blow the coolant out with a hose stream of water.....
 

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Discussion Starter #8
Alright cool. I will flush out the engine side with the hose next time I take it off and change the engine ice. At the time I thought all I did was pretty good at getting just about all the old coolant out. Both rads were off and flushed with the hose, so there was nothing in either when they went back on. I guess whatever was in the motor that gravity didn't pull out is what was left as far as old coolant.
 

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As soon as I get the Engine Ice from Uk, in the next few days, what should I do then to flush her properly? Just for road use. It´s the mechanic that´s going to do it, but I want to know exactly what I´m asking him to do, so he doesn´t take any shortcuts...
Read the manual concerning this subject, but couldn´t believe I had to take the tank and radiators out...
Thanks
 

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Eduardo, do just like the manual says. You do not need to take off the upper radiator, or the lower on for that matter. Just drain the system at the pump drain, disconnect the lower radiator hoses and flush with a strong hose stream and then suck out the remaining water (or remove the lower and tip it to drain, flush, tip and re-install), flush the upper radiator by disconnecting the hoses and running a strong stream of water through.

I would then fill the lower rad with Engine Ice, connect the hoses to the lower rad, connect all hoses on the upper rad, pour some Engine Ice in until it comes out the pump drain hole, re-install the pump drain, fill the system, shake the bike bake and forth, put just enough E.I. in until it barely registers in the expansion tank, start the bike and let it come up to temp, shut off the bike and go have a pint.

When you come back, add E. I. until just barely visible in the expansion tank, start the bike and let it come up to temp...then, while the bike is running, tip the bike from side to side as far as you dare, several times, then shut off the bike and let it cool.

Fill the expansion tank to the MIN mark with E.I. and call it a day.

The whole thing takes less than two hours of your time and you don't need to pay a mechanic to do it.
 

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1st question: When you say "flush with a strong hose stream" means I can use the garden hose with this pressure tips, to do it? or it needs a proper pressure hose?

2nd question: When you say "suck out the remaining water" - how do I do it?

3rd - If, instead of sucking it, I decide to drain the lower radiator hose, and flush it, is that possible with a set of minimum tools (basic) ?

Thank you S.S.
 

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I just use the garden hose and blow out the lower radiator with air pressure,the small amount left won't hurt anything.
 

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Umm,a compressor.If you have not got a compressor at home,remove the lower radiator and flush it out and refit.It's an easy job.
 

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1st question: When you say "flush with a strong hose stream" means I can use the garden hose with this pressure tips, to do it? or it needs a proper pressure hose? Just regular water pressure is fine. No special tip. Just an open garden hose.

2nd question: When you say "suck out the remaining water" - how do I do it? I have a small diameter hose and just siphon it out...or I use my vacuum bleeder.

3rd - If, instead of sucking it, I decide to drain the lower radiator hose, and flush it, is that possible with a set of minimum tools (basic) ? Very easy with basic tools.

Thank you S.S.
Eduardo, I have answered your questions with red above. Pre-plan the job, walk through it once, then do it. Make sure you have everything you need before you start. It will go easily if you have even basic skills. The manual is your friend here.
 

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Thanks a million, can´t wait to try it.
If I get stuck somewhere, I send you s stress post :stopp: and wait for your help :popcorn:
Thanks again
 

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You'll be fine,we are always here to help,take your time and read the manual.:yo:
 
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