Av8tor1977, I don't have after-run oil but I see you use trans fluid. Was wondering how much do you use & do you pull the plug & drop it into the cylinder? I just finished the hommie 26cc mightylite. Its a screamer. The difference between the 25 & 26cc is the shaft threads on the 26 is 8X1 1/25 & I fabricated the mounts out of alum. flat stock. If you have any more ideas on these little 26cc. I will be checking the forum.