Shit. When I bought mine in 2012 the right side looked just like that. No air leaks, and all stock. Still ran just a bad bog on take off.
Wear, and tear literally. I remember the shop had to go from 64mm -65.50mm. Due to the damaged side being so fucking out of round it was unreal, and the scarring on the cylinder wasn't that deep........shit happens i suppose.
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