Any ideas whats going on in the picture.....is this normal. Both cylinders have this coming out of the exhaust, it has new gaskets between cylinder and muffler.

I am running straight pre-mix, oiler is unhooked. 50:1

Plug looks good on the tip, but oily on the threads.

sled runs good....but wished it didn't do this.

I am runnig a big bore kit, with kick ### air filter pods, at stock jetting levels (so if anything I would think it should be lean)

The exhaust flanges are somewhat worn, where they meat the pipe. Just wanted opinions, Thanks.

can you do a plug chop to determine if your jetting is correct?
if you beieve the leak is comming from the exhaust manifold where it meets to your pipe you can pick up so of that rv high temp silicone and seal it up nicely. or maybe your springs are just stretched?

if you fogged the sled then that's what it is.