Yes, If you're using tap water in your bike you might also save on water and just drink from your toilet...And this is a reminder to always used conditioned (distilled) water in the cooling system. Never use tap water. If you can't get distilled water, then simply purchase the 50:50 cooling pre-mix.
There are some parts that are the same and some parts that are not between the S1 and S2 version of the FZ6Hello follow Yamaha riders:
Want to give you an update with my problem: I received a new radiator and found some time this weekend to work on the bike. Taking the old radiator out was pretty easy. After I mounted the new one I found that this radiator doesn't actually fit the bike. The mounts are the same and so are the connectors to the hoses. However the mount points for the radiator fan are different ! The two bottom mount points match, but on the top of the radiator the new one has 2 mount points, vs the original only has one. And the fan only has 3 mount points, not 4. I've attached some pics to make it more clear.
There are other small differences, too. The radiator cap on the original is in an angle, vs. the new one is straight. That makes it much harder to remove it under the fairings. I also think that the radius of the hose going
to the water pump is slightly different.
The eBay seller advertises this radiator as suitable for years 2004-2010, but that is clearly incorrect. From what I could find is that Yamaha actually changed the radiator (and the radiator fan) from 2006 on
from a 4 mount to a 3 mount model. Probably cost saving measures.
So this one is going back. I found another Australian seller which sells an aftermarket radiator - this time the correct one for about $ 100.-. Its not powder coated, just blank aluminum. Not quite as aesthetically pleasing as a black powder coated one, but at this stage I can live with that and just want the get the bike going.
BTW: Does somebody can tell me where and how to unplug the radiator fan ? I followed the cable but it disappears behind some rubber hoses towards the tank. Do you have to lift the tank and/or take the airbox off to unplug this ? The service manual doesn't really say.