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Drake · Posted: Sun Mar 27, 2016 4:09 pm Post subject: Motor question

I have a 2012 Merc 25 that runs great as long as you keep in primed by pumping the bulb. All of the connections seem to be tight and I can't see any fuel leaking any where. Stop pumping it burns the fuel in the bowl and dies out.

Any ideas?

speckled.trout · Full Grown Flour Bluffian Joined: 30 Aug 2012 Posts: 1190

make sure the vent is open on the tank.

ST
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Razorback · Posted: Sun Mar 27, 2016 5:11 pm Post subject:

Sounds like the fuel pump is not working.

maxthelab · Posted: Sun Mar 27, 2016 7:42 pm Post subject:

That's exactly what happened when my fuel pump went out, bad news not a cheap repair. I did replace the fuel lines and primer bulb, hoping that it was sucking air, but no such luck for me, hopefully you'll have better luck.

Skillzzz9 · Posted: Mon Mar 28, 2016 5:10 am Post subject:

Probably just the lift pump diaphragm. You can get it fairly cheap. A little bit of a pain to install, though.
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Johninaustin · Full Grown Flour Bluffian Joined: 03 Jun 2007 Posts: 1118

Fuel pump. You can get rebuild kits off of Amazon.

Drake · Posted: Mon Mar 28, 2016 9:11 am Post subject: Merc

Thanks guys.

CopanoCruisin · Posted: Mon Mar 28, 2016 4:50 pm Post subject:

Could be as simple as the o'ring on a fuel connection. From my past experiences that would be the first thing that I would change! Just syaing, experience..............cC

Hoggeman · Posted: Mon Mar 28, 2016 5:33 pm Post subject:

Does it run with the choke on? If so its your carburetor
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