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Gas EZGO Gas EZGO Marathon, Medalist, TXT and RXV. |
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07-05-2020, 10:39 AM | #11 |
Test before replacing
Join Date: Aug 2013
Location: Ohio side of the Pennsylvania border.
Posts: 3,495
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Re: do i keep the oil injection or not
Back up a minute and tell us more about just stopped for no reason. What exactly is happening? Why do you suspect the oil pump?
If the oil pump really failed, the inside of the engine is ruined. That's why I say let's figure out exactly what is going on. |
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07-05-2020, 11:43 AM | #12 |
Not Yet Wild
Join Date: Oct 2018
Location: Kimball MI
Posts: 66
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Re: do i keep the oil injection or not
Here's my take on oil injection:
If the cart has regular use, the injector will likely work fine. The problem is when it sits for an extended period and the 2 cycle oil gets 'thick', then the pump has to work harder and fails. I see it often on older snowmobiles. Sometimes the pump survives and works after a good cleaning. However, at that point my 'trust' in the pump is gone and I bypass it. The 87 Marathon I just picked up has had the oil injection removed already, but the seller dumped about 2 gallons of 50:1 mix in it. It runs, but smokes heavy. It may foul the plug at some point, but I feel that the extra lube is probably good for an engine that has been sitting for who knows how long. IMHO. on anything this old it's worth the hassle of pre-mixing the fuel just for the peace of mind. |
07-05-2020, 10:46 PM | #13 |
Not Yet Wild
Join Date: May 2020
Location: homestead fl
Posts: 26
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Re: do i keep the oil injection or not
from an outboard motor shop perspective... loose the oil pump. when they fail, you find out after the engine had seized.
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07-07-2020, 06:36 AM | #14 | |
Not Yet Wild
Join Date: Jul 2020
Location: Up North
Posts: 13
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Re: do i keep the oil injection or not
Quote:
I have been driving it for a week alMost since and It has not happened again. Just doing 5 minute trips in my street now tho. I will have to click the speed today with my gos in the cell phone and report back. |
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07-07-2020, 08:01 AM | #15 |
Test before replacing
Join Date: Aug 2013
Location: Ohio side of the Pennsylvania border.
Posts: 3,495
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Re: do i keep the oil injection or not
It could have overheated, but I'm leaning more towards a piece of dirt in the carburetor since it was temporary.
It could have also lost spark due to heat. You say it wouldn't start, so I'm assuming it was turning over and wasn't seized. |
07-07-2020, 02:18 PM | #16 |
Not Yet Wild
Join Date: Jul 2020
Location: Up North
Posts: 13
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Re: do i keep the oil injection or not
It was not turning over at all right after it shut down on me. Right then I pressed the “go” pedal and got dead silence. Walked around it and contemplated how the heck I was going to get it home. After 10 minutes I decided to try it again and it fired right up.
It’s weird how it just peter’d out and came to a quiet stop. No noises or jerking at all. It was about 93 degrees here that day. |
07-07-2020, 03:44 PM | #17 |
Test before replacing
Join Date: Aug 2013
Location: Ohio side of the Pennsylvania border.
Posts: 3,495
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Re: do i keep the oil injection or not
Pretty much impossible to diagnose a one time incident.
Could have been a bad ground or some other electrical issue. |
07-07-2020, 09:24 PM | #18 |
Not Yet Wild
Join Date: Jul 2020
Location: Up North
Posts: 13
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Re: do i keep the oil injection or not
I took it for a spin just now and my top speed going downhill was 12 mph. Low speed going up hill was 7 mph and it seemed to maintain 9-10 mph thru most of the in between.
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07-07-2020, 09:51 PM | #19 |
Gone Wild
Join Date: Jun 2011
Location: Northern Indiana
Posts: 2,823
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Re: do i keep the oil injection or not
Sounds like you're OK with the oiling, but I would still consider the premixing. As others have mentioned - all too often the first indication there is problem is when the engine seizes up. You've got a 30+ year old machine that has probably spent some time sitting. Do you feel THAT lucky?
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07-07-2020, 10:03 PM | #20 |
Not Yet Wild
Join Date: Jul 2020
Location: Up North
Posts: 13
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Re: do i keep the oil injection or not
I do not feel that lucky...I will Just get to premix. Anyone have a link to how I can complete that conversion ?
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