The white line is fuel vapor to the charcoal canister. The fuel line size is larger than 1/4 but smaller than 3/8" Get the next size below 3/8". _____Dan Nees_____ cookiedan@domain.elided Keep Scoutin' and I'll be Travelalling along! 3 Scout II's and still counting! http://members.tripod.com/~IHCaholic/scoutindex.html