Johnson Super Seahorse 35 fuel line

[Wave1960]

Is pressure line pictured fuel rated? I'm looking to replace and have marine rated 5/16" line which is thicker OD. If it is not fuel line I have other options.

 

[racerone]

That appears to be the pulse line to the fuel pump.-----It operates at a very low pressure ( ~~5psi or so ) and does see air fuel mix from the crankcase.

 

[F_R]

What racerone said. Yes it is the pulse line, and yes it normally operates at about 5psi. Except when it lean sneezes. When that happens, it will blow a hole in the hose unless it is the correct stuff. I've seen lots of them rupture back in "the day". The original hose had fiber reinforcing strands molded in. And yes, it needs to tolerate gasoline & oil.

 

[Wave1960]

I will use the thicker marine rated fuel line then and modify the bracket that attaches in the middle to handle the increased thickness.The original lines were all pretty wimpy.