Originally Posted by Foot dragger
If compression was leaking past the head gasket and pressurizing the cooling system,then it would have carbon particles and compression by products in the water/anti-freeze? Just thinkin
A 300 I had did that once and there were black spots floating in the radiators.
That's pretty much what I was figuring. The bike has definitely been showings signs that the cooling system is pressurized. Hope this cures it.