98 Mercury 175EFI questions

[Tarheel14]

OG680230 serial number.

Does this fuel fitting supposed to have something connected to it? Its above the water/fuel separator filter. I am going to take it in for service anyway but was just curious.

[acesover]

It will help you to receive faster, and more accurate responses if you will post your questions in the appropriate forum:

Mercury Motors (this forum)
TWO STROKE models (Less than 135 hp).

Mercury - 2.0/ 2.4/ 2.5 Liter High Performance
For discussions related to 2.0/ 2.4/ 2.5L Two Stroke motors (Carb, EFI, Optimax or Racing).

Mercury - 3 Liter & 3 Liter High Performance
For discussions related to 3L Two Stroke motors (XS, ProXS Optimax, EFI, or Racing)

Mercury - 4 Stroke / Verado
For discussions related to ALL Mercury 4 Stroke Engines.

For fastest/most-accurate assistance, please choose the correct forum.

[hchi]

Sometimes they have a 6-8 inch clear vinyl tube attached. It is a vent for the oil tank and I have seen some motors with no tube like yours.

[EuropeanAM]

Nothing attached to that nipple from the factory.

Moving thread to the correct forum for you.

[Tarheel14]

Just an update........... took it in for service. Got the fuel line changed out. From the tank to the engine. It was from 2013. Plastic insert had deteriorated and was blocking fuel flow. They said I was lucky it was running at all. Cant wait to take it out this weekend. Im excited...
New fuel line is supposed to be ethanol resistant.