Report this message as spam or having improper contents
Thank you for reporting improper contents. Reported messages will normally be checked manually within 24 hours. To avoid misuse of this forum by programmed robots, we have to ask for the characters in the picture below.
RE: fuel tank issues
rem83 said 2008-12-15 15:32
I´m pretty sure the line your talking about is a vacuum line that goes from the petcock to the vacuum port on the cylinder head at the intake to cylinder #1. What should normally be happening is the petcock won´t open, even if set to open, unless that line is maintaining a vacuum. If the petcock was leaking and you were getting gas down to the carbs, having the vacuum port on the intake open would probably give you a high idle and throw off your mixture.