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Piston discoloration difference.


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have you checked compression on both cylinders before disassembly? 
 
 
are both plugs the same color?
 
 
Could be that one cyl is lower on compression or could be that you have an air leak or weak spark. ect...


I didn't....was doing a simple oring change and noticed it...still runs great and spark plugs are the same color

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get yourself a carb sync tool,  make it run even on both cylinders, and techniqually you get more power as both cylinders are then running the same vs one holding the other back a little. 

 

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The carbs can be a little out of sync givin one cyl more fuel to burn ,do both fattys ping the same how about the smoke out back


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I may have found my issue, as I was investigating the problem of the discoloration, I did find a noticeable dent on the pipe that goes with the piston that has the light brown. Have no idea how I got that. I'm guessing dragging at a track some time ago that had large clunks of clay and rocks. At idle it definitely has less smoke and ping than the good pipe side. While revving, they both feel the same. So would this play a role in the discoloration?ba707d70a7c0324e6ae6138871cde12b.jpg

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I may have found my issue, as I was investigating the problem of the discoloration, I did find a noticeable dent on the pipe that goes with the piston that has the light brown. Have no idea how I got that. I'm guessing dragging at a track some time ago that had large clunks of clay and rocks. At idle it definitely has less smoke and ping than the good pipe side. While revving, they both feel the same. So would this play a role in the discoloration?ba707d70a7c0324e6ae6138871cde12b.jpg

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Dent can not be seen from plain view...I just happen to feel it

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