The fuel lines now supplied with the Rotax motors are used in the S7S installation unlike previous versions. I figured out the fuel line routing and did a trial fitting to ensure that both lines to the carbs fit and have appropriate clearance from engine parts.
The supplied fuel lines are clad in red silicone-based sheathing that is fire resistant. After some discussion with other builders, my A&P/IA friend and other skilled mechanics I have decided to cover the fuel lines with fire sleeve.
