Question about 2004 Aprilia Tuono 125

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Coolant color?

Do the Rotax engines come from the factory with blue coolant? I've never seen coolant that color before. Looks suspiciously like windshield washer fluid.

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Coolant leaking from R1 bottom of engine

FYI This has just happened to me.
Bike has been stood for a few weeks and i started it. Noticed the temp was unusually high (105-110) so switched off, checked coolant and it was dry.
I topped up and noticed the coolant leaking from what appears to be a hole in the engine sump casing.
Im a fairly fast worker and i managed to remove the entire exhaust system down to the header pipes and drop the oil and remove the sump casing in around an hour.
It might take longer if you don't do much mechanical stuff. (I'm just a hobbyist btw not a mechanic).
It turns out that the hole in the sump casing is actually linked to a coolant overflow pipe internally. So don't worry coolant is NOT mixing with your oil (and therefore oil is NOT mixing with your coolant!)
So obviously there is something more to this than meets the eye.It turns out that on all Pre2006 R1's the Water Pump is internal and if it leaks, You guessed it, It used this overflow pipe to stop the coolant mixing with your oil.
This is where my mechanical knowledge ends and i will be taking my bike to a real mechanic to swap out the water pump for me.
The good thing is, if you already remove your exhaust system and drop all your oil etc this will save around 1-2hours of labour at the garage!When they've fixed, get them to replace the oil and filter and leave them your exhaust if you like to fit and they can run it up and test it before returning to you working:)
Samantha x

May 17, 2012 | Yamaha YZF-R1 Motorcycles

1 Answer

Why is my antifreeze blue

There are a few different types of coolant. green, pink, blue, red. No need to worry about it being blue, just dont mix it with another color, either add more of the same coolant, or flush it and refill with entirely another color.
Green is about the only color you will find at most local part stores, to get more blue, you'd have to go to your local dealer, or order it online.

Mar 14, 2012 | 2003 Yamaha YZ 125

1 Answer

What type of antifreeze/coolant should i put in my 1991 honda cbr 1000 f hurricane

Any kind that is specifically for a motorcycle. Automotive coolants have too much silicates and are harsh on a motorcycles water pump seals.
If you're adding, try and get the same color. Spectro is one and its blue. Maxima also makes motorcycle fluids and their coolant is green.

Aug 28, 2011 | Honda Buell Racing 1125RR ASB Motorcycles

1 Answer

Air bledding radiator and engine

There is no bleeding it.
The correct/official procedure is;
- Tighten the drain plugs
- Fill the radiator up to the thermostat housing filler neck with coolant.
- Fill the reservoir tank up to the upper level line with coolant.
- Start the engine with the radiator cap removed and run it until no more air bubbles can be seen in the coolant.
- Tap the radiator hoses to force any air bubbles caught inside.
- Stop the engine and add coolant up to the radiator filler neck.
- Install the radiator cap.
- Fill the reservoir tank up to the upper level line with coolant and install the cap.

I hope this help,

Jul 20, 2011 | 1989 kawasaki ZXR 400

1 Answer

What type of oil can i use and what type of cooling fluid? thak you

Husqvarna now specify Castrol 10/50 for their bikes...i would check your owners manual to be sure or contact your local dealer. Zerex extended life coolant will work fine...if you have the green factory coolant stay with it, if you have the yellow use yellow---do not mix colors.
I hope this helps.

Jul 07, 2011 | 2011 Husqvarna TE449

1 Answer

Boils and overflows water also steams out of the tail pipe but no blown head gasket seen

Classic blown head gasket, blown to the inside of the water jacket not necessary visible from outward appearance. I'm surprised that it'll even start with the steam coming out the tail pipe. If you are running the proper coolant in the system (meaning not just water) the antifreeze is deadly on bearings cylinder walls and anywhere else engine oil is suppose to be. Check the crankcase oil and if it looks like caramel you have a problem all coming from the coolant leaking into the engine/cylinder. The head gasket will need to be changes, crankcase drained and completely flushed and the cooling system drained flushed and cleaned out of any oil residue. If you continue to run the engine even at idle and the cylinder gets more coolant in there than it can displace it will bend parts like a rod or even break a piston. The inside of the cylinder when you do take it apart will be just spotless as if it was just made cause the coolant will clean every spec of dirt and carbon of the top of the piston and cylinder head. It's a long job but shouldn't be to terribly complicated.

Dec 22, 2010 | 1998 kawasaki KLX 300

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The coolant from the coolant tank overflows mechanic showed me a overflow tube running from the tank. is my mechanic screwing around with me? he also showed me a rubber tube running from the...

i"ve never heard of engine overflow tubes...but bikes do have overflow tubes from the coolant tanks. Coolant should not overflow from the tank unless under extreme heat idling for long periods and constant stop and go traffic. If your bikes coolant system hasn't been serviced in the last two years you might want to do that. also i would change out thermostat and also make sure that your fan is turning on..if its overflowing the fan should be on because the thermostat sends a signal to turn the fan on.

May 03, 2010 | 1988 Honda VT 1100 C Shadow

1 Answer

Color of coolant

Color is just that, it just looks pretty. You need to use either the genuine Kawasaki anti-freeze or dex-cool style anti-freeze. Motorcycles use a ceramic washer in the water pump that is prone to damage if you use silica style standard automotive antifreeze. If you dont have a dealer near you Dex-cool is available at most auto stores.

Apr 25, 2010 | 2005 kawasaki ZX-6R

1 Answer

Coolant in oil, oil in coolant. blowing white smoke

Sounds more like a blown head gasket. Check the compression on the engine to be sure. Anything below 150 is bad, although the bike may run. Could also be a cracked head or block.

May 27, 2009 | 2006 kawasaki KX 450 F

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