Engine oil left side leak

[kaput]

Hi, I think I saw someone with a similar problem to this a few months ago but couldnt find the post and at the time someone said it was glue or something so I cleaned it and forgot about it.

Mine is defiantly oil of some sort and I think it is coming from the left exhaust header. I am thinking my bike is running rich may be causing this and have ran 1 tank (out of 3 probably) of B-12 through it so far and just replaced the air filter and am hoping this will clear up the problem in another tank.

It looks like it is coming from the exhaust but was wondering if anyone else had any other thoughts.

The oil pretty much dries up on the cooling metal there and never hits the ground, seems to be preforming fine apart from 50mpg rather than the 80 I would like.

I cleaned this 1 week ago, probably +-200 miles. Here is a pic...

Thanks,
-=kaput=-