Quote:
Originally Posted by yorkie_chris
There's no pressure in the expansion tank flybuster, it's at ambient pressure.
There is a wee bit of pressure inside the rad but normal op temp is in 80 degree region so not like it's going to steam clean your head off at the waist.
The expansion tank is kinda necessary. But not necessarily that tank, I just put a little ally water bottle cable tied to the right hand side of the radiator. (I've got an air horn where the tank would normally go)
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Cheers YC, you are of course right about the expansion bottle but I thought there'd be pressure built up behind the radiator cap.
I know there is with a car cooling system but never had any dealings with a bikes and presumed it would be under similar pressure.
That is why I joined the forum mind....to learn.
