Take a good look at your oil.
You wll get bubbles in the coolant if the waterpump seals are shot and the valve guide seals and guides are also shot.
Is your airbox dry or is it full of oil?
Is the engine oil turning milky?
Is there oil in the coolant?
'02 KTM 640 Adventure-lowered
"On the road there are no special cases."
Cormack McCarthy-The Crossing
The faster it goes the faster it breaks.
And high performance=high maintenance.