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Posted (edited)

alright so i started pulling pieces off the bike today, had a broken o ring to fix, it was leakin coolant, so i decided im gonna take my cylinders off to get ported too

anyways when i pulled the head off, the outer portion of the domes like where the coolant is, closest to the exhaust side was black, the part of the dome thats on the motor looked fine, a goldenish color,

what would cause this? my bike was a bit lean lately, maybe it got hot? it never went up over 200 degrees though

thanks

Edited by macgillivary
Posted

my 2 guesses would be were it is goldish it got cleaned from the collant or second it would be from the way your plugs are sitting in the head and on the back side of the spark it biult up carbon...

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