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Jason Grimm

2.5 Litre OMC (Yellow Hose)???

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I just noticed a yellow hose that goes from the carburetor to the mechanical fuel pump is disconnected at the fuel pump. I have no idea how long this has been off. What is it for and will it do any damage to the motor?

The reason I noticed is because during my last outing, when I put the boat in neutral in low RPM it would stall. (once) So I was looking to change the spark plugs and saw the end of the yellow hose was disconnected. About half way from the pump to the carburetor there is a piece of black junk in the hose, I imagine that could create some kind of blockage? It is a 86' 19' Starcraft islander with a 2.5 litre OMC.

Jason

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I assuming it was a clear hose that yellowed over time and it is a tell tail hose that lets you know your fuel pump is bad. It is supposed to go to a bowl vent so when the pump fails it puts fuel in the hose that you can see.

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It's also there so that if the pump diaphragm fails the spilled fuel will go into the carburetor and NOT leak into the bilge. A fuel leak to the bilge can be disastrous. Like KABOOM. Get a new piece of clear plastic tubing and hook it back up.

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it is supposed to be yellow

it makes it easy to see any thing in line

if it ever has fluid in line you are supposed to replace pump and hose

this hose is only there for a safety device it needs to be clean and unobstructed

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