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Gas EZGO Gas EZGO Marathon, Medalist, TXT and RXV. |
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09-09-2015, 07:27 AM | #1 |
Getting Wild
Join Date: Apr 2014
Location: Forney TX
Posts: 96
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88 2 cycle marathon NO FUEL ISSUE
So the story behind this cart is it has sat for 3-4 years, I think the previous owner mixed the oil and gas too rich...he said he put a new carb on it when he parked it, the old carb was in the bed of the cart (it moved freely so I swapped them still nothing) I took the "new" cab off and it was caked on the inside with crystalized gas and pasty oil...I cleaned it up the best I could but still left it off. Anyways on to the fuel pump, I have taken it apart 3 times, cleaned it and even put carb cleaner on the inlet side and it spits out towards the carb. With the air filter and hose removed and spraying carb cleaner in the carb the motor will fire and run for a second. I have also replaced all the fuel lines, from the top of the tank to the new fuel filter to the carb. I am curious if the line in the tank is not pulling the gas to the pump...maybe I should replace that??? Cart came lifted, with beefer tires to go with, really wouldn't mind some input to get her running before my baby is born and before deer season starts....thanks
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09-09-2015, 10:24 AM | #2 |
Test before replacing
Join Date: Aug 2013
Location: Ohio side of the Pennsylvania border.
Posts: 3,496
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Re: 88 2 cycle marathon NO FUEL ISSUE
I would start thinking about crankshaft seals.
You should also blow air through the line into the tank to see if it is clogged. Let's also think about this. Why would somebody put a new carburetor on a cart, and then park it? Because he couldn't get it to run, ran out of ideas, and gave up. That's why. We now have to wonder what his original issue was. It could be a clogged exhaust, crankshaft seals, worn rings, or he could have even put the piston in backwards. |
09-09-2015, 12:58 PM | #3 |
Respect the Cart
Join Date: May 2010
Location: Rocky Mount, Virginia
Posts: 2,190
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Re: 88 2 cycle marathon NO FUEL ISSUE
Or it could be as simple as the pump isn't primed. Remove the line to the carburetor and point it into a collection jar. Now wrap some rags around the fuel filler to make a seal. Blow until you see a steady jet of fuel. To test the crankshaft seals crank the engine (with the drive belt removed) and see if you get big healthy jets of fuel from the pipe, a dribble or a trickle will not do. If you do, reconnect the line to the carburetor and see if it starts. If it still fails then at least you have ruled out the fuel delivery system.
Dave |
09-09-2015, 01:33 PM | #4 | |
Getting Wild
Join Date: Apr 2014
Location: Forney TX
Posts: 96
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Re: 88 2 cycle marathon NO FUEL ISSUE
Quote:
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09-09-2015, 01:36 PM | #5 | |
Getting Wild
Join Date: Apr 2014
Location: Forney TX
Posts: 96
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Re: 88 2 cycle marathon NO FUEL ISSUE
Quote:
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09-09-2015, 02:00 PM | #6 |
Respect the Cart
Join Date: May 2010
Location: Rocky Mount, Virginia
Posts: 2,190
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Re: 88 2 cycle marathon NO FUEL ISSUE
Basically you need to pressurize the tank to fill the line and the pump with fuel. If you have an air line so much the better but once you have fuel coming out of the line the pump is primed.
Dave |
09-09-2015, 02:50 PM | #7 |
Getting Wild
Join Date: Apr 2014
Location: Forney TX
Posts: 96
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Re: 88 2 cycle marathon NO FUEL ISSUE
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09-11-2015, 11:48 PM | #8 |
It ain't gonna be easy.
Join Date: Apr 2008
Location: St. George, SC
Posts: 1,480
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Re: 88 2 cycle marathon NO FUEL ISSUE
It is possible that you have a torn diaphragm in the fuel pump. Ordinarily that would show up as fuel in the crankcase though. As Dave said, simply pulling the fuel line off the carb and hitting the pedal will verify if you have good flow to the carb and rule out fuel delivery issues.
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Tags |
2 cycle, ezgo, fuel issues, gas, marathon |
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