115 Mariner

j_martin

Admiral
Joined
Sep 22, 2006
Messages
7,474
Re: 115 Mariner

It is collasped completly, (when the bogging down problem occurs) once you throttle back and let her idle a bit it pops back out. I've tried three different primer bulbs also but all do the same thing.

The primer bulb is fine. The fuel line between the bulb and the tank is restricted, or the fuel pickup is restricted, or the fuel tank vent is plugged, or the fuel tank "safety" valve is plugged.

It is pulling a vacuum trying to get fuel. Once the bulb collapses, it adds to the problem, but it's not the original problem.

hope it helps
john
 

arsenalpsu

Petty Officer 1st Class
Joined
Dec 1, 2008
Messages
290
Re: 115 Mariner

Err, argh, if the fuel primer bulb is going flat (not just a little soft) it's not getting fuel. That means it's not getting fuel. That means somethings is wrong with the fuel line or tank. So why the heck are you suggesting spark problems?

Because all the above only addressed the ignition and that was the only part of the system he didn't check yet. But if it's completely flat (not just soft as i though he meant) than i agree, something is up with the fuel supply.

If this is the case i wouldn't run her much above 2500rpm, she will run lean and you'll melt some pistons.
 

Cadwelder

Lieutenant Commander
Joined
Aug 30, 2010
Messages
1,780
Re: 115 Mariner

Went to the lake and ran it until she started cutting up, swapped over to the portable tank and all was fine. So it is something IN the tank. I took one of those long spring loaded grabber things and went fishing in the tank. After about 50 tries I pulled out a piece of cloth. How it got there I have no idea, but problem is solved. It must have just been floating around in there until it decided to cover the pick up tube. It was always when the tank was at a 1/4 tank or less, which makes since now. When the tank was full the cloth floated further away from the tube.

What an odd thing to happen. This forum has been great and I'm sure you are glad to quit hearing from me. Thanks again for ALL your help from everyone.
 
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