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fill

out

your

profile.
 

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Still can't figure out what your picture is.
Vertical exhaust cam cover. I think....

Beyond that, I can't say what we're seeing. Hole, crack, fissure???
 

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It may run but the main concern after overheating is has the cylinder head warped or cracked. If it runs at least that means the piston has not welded itself to the bore. Rings may have also lost some tension and may have excessive blow-by.
I would start by checking for any signs of combustion gas getting into cooling system and any internal coolant leaks.
 

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Btw, if you don't know how to check these it's probably best to take it to a competent mechanic, doesn't need to be a Ducati specialist.
 

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Vertical head will be first to overheat because it sits higher and therefore loss of some coolant will leave it partially empty.
My 916 ST4 corroded the head through the exhaust port just after the valve on the vertical head.
 
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