Yup I can remember seeing that set up. When I do that I will remember this. So if you look inside my tank from the gas cap you should just see line coming down through the hole and not see any grommet right...The grometed line goes into the tank from above......the carb box bottom is not the top of the tank.....needs to go through that and then bottom out on the top of the tank.......about a half inch or so in between the two....