I am replacing the gas assembly on my (pulan) weed eater xr-85, I need to know how the fuel lines connect to the carborator. I have one line coming from the tank and one from the primer pump.

Hi,
I was attempting to post this link when AMHD went down. This is an old machine, and one of the few with a true primer. Since the lines are different sizes, it ought to be kind of obvious which hooks to the carb though less clear about where the small line hooks before then. The line leaves the tank going through pump to the accumulator and to the carb. The accumulator is a one-way valve also and prevents air from entering the metering side of the carb.
http://www.odref.com/poulan/pdf/WEEDEATER/GASTRIMMERS/xr-85.pdf
Peace,
Clarke
PS Few places have this breakdown available!