RE: ARC Jupiter
BIG, I'm back on line and back in Fla. Sorry we didn't get togeather in Mi.
Now if you have the same sheet I have here's your answer to the fuel tank. Check Item 60 & 61 on your sheet. It shows the tank and a rubber like " O " ring around the front of the tank. When put on as in Item 61, you PRESS the tank into the motor mount opening and it holds the tank in place.
If you wnat you can also put some kind of support at the rear of the tank. I usually just stuff a piece of styrofoam in to make me feel better.
ENJOY !!! RED