Mercury 40 HP EFI Uses 1/4-inch ID Fuel Hose
Posted: Sun Jul 25, 2021 11:20 am
My [unidentified Boston Whaler boat is rigged with a] Mercury 40 HP EFI outboard that has a 1/4-inch ID fuel hose under the [engine cowling]. That hose mates with a 1/4-inch to 3/8-inch adapter in the [stern] that is on a hose that runs to the [fuel] tank.
I do not understand why a 3/8-inch or 5/16-inch ID hose isn’t used inside the engine cowling.
I am [new] to boating but generally good with engine mechanics.
I do not understand why a 3/8-inch or 5/16-inch ID hose isn’t used inside the engine cowling.
I am [new] to boating but generally good with engine mechanics.