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Gas EZGO Gas EZGO Marathon, Medalist, TXT and RXV. |
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06-29-2014, 01:19 PM | #1 |
Not Yet Wild
Join Date: Jun 2014
Posts: 27
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Marathon 2PG Throttle adjustment
Hi All,
I have manged to acquire a 1985 Marathon with a 2 cycle 2PG motor in it. I don't know a lot about this unit except that I do know the engine has been rebuilt and there is probably not a governor on it. It really flies. Anyways the throttle is very sensitive meaning it is very hard to maintain a slow speed in both forward and reverse. How can I adjust this so that I can maintain a constant slow speed? Thanks! Mike |
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06-29-2014, 04:49 PM | #2 |
Test before replacing
Join Date: Aug 2013
Location: Ohio side of the Pennsylvania border.
Posts: 3,496
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Re: Marathon 2PG Throttle adjustment
The throttle plate is opened by a spring that is wrapped around the throttle shaft on the carburetor. It is spring loaded open, and is held closed by the throttle cable until you step on the pedal.
There is a spring on the pedal that pulls it back up, and pulls the throttle closed. Your throttle cable should slide freely through a hole in the throttle lever. You can check that by holding the lever closed with your hand, and pressing on the pedal. Does your throttle operate the way I have described? If not, it is connected wrong. |
06-30-2014, 04:17 PM | #3 |
Not Yet Wild
Join Date: Jun 2014
Posts: 27
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Re: Marathon 2PG Throttle adjustment
Ah! There is no spring. There is a stop nut on both sides of the throttle arm. Thanks for the help!
Mike |
05-05-2018, 11:51 AM | #4 |
Test before replacing
Join Date: Aug 2013
Location: Ohio side of the Pennsylvania border.
Posts: 3,496
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Re: Marathon 2PG Throttle adjustment
Here. http://www.buggiesgonewild.com/gas-e...djustment.html
Getting rid of the governor will take you from 12mph to around 18 mph. The carb should be spring loaded wide open on its own when nothing is connected. |
05-05-2018, 05:01 PM | #5 | |
Not Yet Wild
Join Date: Aug 2017
Posts: 61
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Re: Marathon 2PG Throttle adjustment
Quote:
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09-06-2018, 07:52 AM | #6 | |
Getting Wild
Join Date: Aug 2013
Location: Houston, TX
Posts: 81
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Re: Marathon 2PG Throttle adjustment
Quote:
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08-17-2019, 05:55 PM | #7 |
Not Yet Wild
Join Date: Aug 2018
Posts: 1
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Re: Marathon 2PG Throttle adjustment
HELP! Carb seems to be flooding out. Took the carb off 3 times - tried adjusting the float, the pilot air screw and put new filters and gas line on it. Checked plugs - getting plenty of even spark. Turned the pilot screw all the way in and the gas continued to flow (too much gas - not enough air?) What can I do to improve air/gas mixture?
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08-17-2019, 07:39 PM | #8 |
Test before replacing
Join Date: Aug 2013
Location: Ohio side of the Pennsylvania border.
Posts: 3,496
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Re: Marathon 2PG Throttle adjustment
Check your fuel pump for a ripped lower diaphragm. http://www.buggiesgonewild.com/gas-e...fuel-pump.html
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