flushing cooling system out

[N cee thirty]

well starting to get round servicing the fazer and deciding to start on the easy with the coolant system.

what flushing compound can i use for it ?

https://cgi.ebay.co.uk/COMMA-RAD-FLUSH-RC250M-RADIATOR-CLEANER-XSTREAM-/280519210038?cmd=ViewItem&pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item41503f7436

that stuff any good ? cheers
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'00 Aprilia RS50 > '92 Honda CG > '99 Yamaha Fazer > '91 Yamaha RXS > '79 Suzuki X5 > 01' Honda Cg > 07' Honda Cg > 82' Kawasaki Z200 > suzuki gsxr 400 gk73a > honda vfr 400 NC30 Mod 2 Passed 09/06/2011

Jewlio Iglesias wrote: I actually did vote BNP once

[stinkwheel]

Water, from a hosepipe.

Park the bike near a drain. Leave the drain plug(s) out. Put the hose in the top, turn it on at a steady trickle, go have a cup of tea.
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[N cee thirty]

hmm i wanted to do that,but want to make a proper job and get any shit thats in there out
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'00 Aprilia RS50 > '92 Honda CG > '99 Yamaha Fazer > '91 Yamaha RXS > '79 Suzuki X5 > 01' Honda Cg > 07' Honda Cg > 82' Kawasaki Z200 > suzuki gsxr 400 gk73a > honda vfr 400 NC30 Mod 2 Passed 09/06/2011

Jewlio Iglesias wrote: I actually did vote BNP once

[stinkwheel]

I suppose the two questions you need to ask yourself are:

1) Does something make you thing your cooling system is operating below optimum? Does it actually need to be flushed out at all?

2) What exactly is it you are trying to flush out? In an aluminium engine which has had a modern, corrosion inhibiting coolant in it, I'd have said there is somewhere between little and nothing to flush out of there. At worst the last vestiges of the old coolant.

I've never found significant deposits of anything much in the cooling system on a modern bike engine. Even if you go into the waterpump/thermostat chamber where sludge and grot would collect.

On a cast iron diesel engine, yes, you can get all sorts of rusty yuck in there with high mileages (like 100k +).

If you'd had a leaky mechanical seal in the waterpump or a blowing head gasket, there could be oil contamination and possibly mayonaise in there that would probably be better rinsed out.

Collect the old coolant in a bucket, see if there is any sludge/detritus in it. If there is, maybe worth giving it a flush out. If there isn't, why bother?
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[N cee thirty]

hmm i'lla get on it today hopefully

cheerz
____________________
'00 Aprilia RS50 > '92 Honda CG > '99 Yamaha Fazer > '91 Yamaha RXS > '79 Suzuki X5 > 01' Honda Cg > 07' Honda Cg > 82' Kawasaki Z200 > suzuki gsxr 400 gk73a > honda vfr 400 NC30 Mod 2 Passed 09/06/2011

Jewlio Iglesias wrote: I actually did vote BNP once

[Serendipity]

I had a seal fail in the oil cooler of my CBR600 that dumped a load of oil into the cooling system. The CBR600F oil cooler lives in a little water jacket at the front of the motor.

After I replaced the seal I flushed the system with absurd amounts of fresh water. I’d already had the radiator off and flushed that separately, but once that was refitted I ran loads of water through from a hose pipe. Once that was all running clear I went through a process of filling the system with fresh water and warming the engine to running temp, then draining and repeating. I spent an entire afternoon filling, warming and draining steaming hot water.

Sort of like a very expensive kettle.
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2007 CBF1000 & 2016 CBF1000F - Commuter heaven | 1994 CBR600FR - Awaiting defibrillation

[Pete.]

You should have mixed up a strong mix of hot water and detergent (fairy liquid) and put that in, then run the bike for a few seconds to break down the oil emulsion. Would only have needed one fresh-water flush then.
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[Serendipity]

That too.

Yes I did run a cocktail of Fairy through, hence the excessive rinsing. Dunno about you, but I'd rather not leave highly corrosive substances in the cooling system.
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2007 CBF1000 & 2016 CBF1000F - Commuter heaven | 1994 CBR600FR - Awaiting defibrillation

[Pete.]

Like tap water you mean?
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[ms51ves3]

[Kickstart]

Hi

To flush a radiator I tend to disconnect the pipes from it to the engine, and connect a hose pipe the blast it through (normally in reverse of the normal direction first).

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[puremagic72]

50% white vinegar and 50% distilled water, run your bike for a few minutes with it in, then empty, and flush it all out with a hose for a while, then refill with coolant!

Best way to get any crap out.

Baz.
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Make; cbr929cc blade Year; 2001
Gsxr 750 2000, alstare Corona, Current bike 1999 R6
(1) Kids in the back seat cause accidents; accidents in the back seat cause kids.