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Is this normal?

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Old Dec 30, 2015 | 11:55 AM
  #1  
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Default Is this normal?

Greetings! Pulled the head on the front cylinder, after getting the head off (this is my first time) is the build up on this piston normal or is this excessive? Also, you'll notice that one of the cylinder studs is longer than the others. Is this normal or what's good? Thanks for looking, love this community

 
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Old Dec 30, 2015 | 01:20 PM
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Looks fairly normal to me. How many miles and what year is your bike?
 
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Old Dec 30, 2015 | 01:26 PM
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It's an 07, about 32k
 
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Old Dec 30, 2015 | 05:04 PM
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That's why many on this site have switched to a DK Customs intake, that routes the oily blow-by from the engine out to the atmosphere, and not back into the intake like stock and most other stage 1 intakes.
 
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Old Dec 30, 2015 | 05:13 PM
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Yeah, planning on an external vent while it's already taken apart. But what about that taller stud...is that also normal? It seems very odd to me....
 
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Old Dec 30, 2015 | 08:40 PM
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My pistons looked like that. I soaked them in carburetor cleaner over night and almost all of the carbon wiped off. If you need to reuse or sell them.
 
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Old Dec 30, 2015 | 10:54 PM
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Looks like that stud is backed out. Carbon looks normal. Address that stud before you re assemble
 
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Old Dec 30, 2015 | 11:01 PM
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Why did you tear it down?
 
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