ORIGINAL: Gray Beard
ORIGINAL: Mr67Stang
ORIGINAL: DavidAgar
Fuel it and start it. The red is most likely after run oil. Good Luck, Dave
Or it's congealed castor oil. It can get thick and pasty. It will thin out with heat. I have used my monocoat heat gun to thin it out and then flush it out with fuel.
It's red.
I've bought a few used engines that had the same thing. Thunger Tiger Pro .40 had brown goo, K&B 40 had red. Red was probably from Klot's castor oil being added to the fuel, brown was probably just older goo. Run some new fuel thru it and it will be fine
