The "rubber intake tube" from the intake (motor side) connects to the carburetor and the "rubber connector tube" connects the carburetor to the air cleaner base. Hose clamps were used to secure both. Note: The "rubber connector tube" used is from NAPA. The stock FL250 rubber connector tube will not fit this aftermarket carburetor.
I used something similar to a "tee". What was used is a HONDA "check valve", same as they came with originally.