Mariner 5hp 2S - Fuel Shut Off Valve Problem?
A minor issue I found with our recently purchased 2003 Mariner 5hp, was that the fuel switch (internal/external-Cut off) was really stiff, and also the nearby pipes were leaking fuel very slightly.
Ordered some new fuel hose, a new fuel filter and hose clips and replaced all of those, and at the same time removed the fuel switch and gave it a complete clean and lube, which freed it up nicely.
Hit a minor problem in that there appear to be a little washer with a mesh filter across it in the "bubble" bit of the fuel switch. The mesh had broken up slightly, so I just removed the mesh, but left the washer in place when reassembled. I THINK all the mesh would do would be to filter any muck coming in from an external fuel tank.
All worked well, with no leaks... the only issue is that I ran the engine then turned the fuel tap off, expecting it to stop fairly quickly. It didn't.
Let it run for about 3 minutes or so, but still didn't stop.
How quickly would you expect it to stop? Was it just running on fuel still in the carb/fuel filter, or do you think that the fuel tap is no longer actually stopping the fuel?
Any help or advice would be appreciated as ever!