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Likes: 
1st pic is what you get for too much ign timing. 2nd when it breaks headgasket and leans mix and over heat piston.
But nothing that cant be fixed. Little solid hone use and new used piston, off you go!
It can tolerate quite much timing adv. with 1.5mm gasket compared to 1mm. When i get this back together have to check timing and take it 2* lower 'cause it worked good with that. Part of it because i dont have high comp pressure.
And i use copperhasket spray, dont know is it good or bad.
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