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Cr 125 Fouling plugs

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I recently rebuilt my 2000 cr 125.  I put a piston kit, v force reeds and a fmf fatty with shorty. I also cleaned carb and it was spotless.  After everything was said and done, I noticed it started fouling plugs pretty frequently.  I have 1.8 hours on it currently and have gone through 2 br9eg's and 3 br8eg's.  The most recent plug I fouled just going down the road about 30-40mph.  Also before I rebuilt it, I noticed it was blowing oil out of the exhaust onto the swing arm and dripping down the silencer.  I thought rebuilding it would fix that issue but it is still doing it.  I'm clueless at this point any help would be much appreciated. 

This image is oil the oil that accumulated on the silencer and swing arm since I rebuilt it.

125.jpg

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-jetting not suited to type of riding (trail ?)

-high flash point 'racing' premix oil for trail riding

-despite new, reed petals not sealing / damaged

-right hand crank seal allowing gearbox oil into the crankcase

-float level too high, fuel inlet valve & seat worn or dirty

 

Careful experimenting with hotter heat range spark plugs,

find and fix the real problem rather than mask it or, create new problems.

 

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Mine was fouling plugs, the power valves were full of transmission oil. I replaced the seal where the power valve linkage goes to the govenerner.. I've been good so far

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