Help ! Put gas in tank.

NewtoOrange

New member

Equipment
L2501
Mar 1, 2017
50
2
0
Pleasant Plains, Il. USA
Pulled a real FNG move. L2501, 10 gal tank. Topped it off prior to mowing. Ends up added about 4 gals of gas to about 6 gals of diesel. Put 0.3 hours on it before Einstein figured out engine was losing about 200 rpm and a small amount of smoke. Parked it and have drained tank at inlet of fuel filter. Will now change filter and let out anything else gravity wants to take.

Anything else I should do before filling tank and bleeding the system per owners manual ?? I searched on here and did not come up with anything else except maybe draining lines at the injectors. Thanks.
 

whitetiger

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Kubota tech..BX2370, RCK60, B7100HST, RTV900 w plow, Ford 1100 FWA
Nov 20, 2011
3,500
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I run into this several times a year, it happens to a lot of people. Change the filter, fill your tank with fresh fuel and start it up. Let it idle for a couple of minutes and go on mowing. The remaining fuel in the pump, tubes and injectors is so minimal that what is returned to the tank will be quickly diluted.

If it will not restart, loosen the fuel tubes to the injectors in the cylinder head. Only loosen them at the injector, never at the injection pump. Loosen 1 to 1/2 turns. This will flush the contaminated fuel and any air out. Crank the engine for approximately 10 seconds, then let the starter cool for 2 minutes.

Perform this cycle 3 or 4 times, tighten the fuel pipes and start it up.
 
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NewtoOrange

New member

Equipment
L2501
Mar 1, 2017
50
2
0
Pleasant Plains, Il. USA
Thanks. I replaced the filter and filled tank and managed to put diesel in it !!! Bled the line with the valve at the fuel injector, started and let it run for 30 sec then turned off and closed air valve. Started right up again then after about 2 minutes stammers, coughs etc. then dies. I figure, well 150 hours on this one is enough so better tell the wife time to buy a new one ! I did short cranks on it about 10 times but it just wouldn't quite catch. On the last time the ole girl spit out some black smoke and started to run. Now I am just letting it idle for a while after having it back up to PTO speed a few times. I guess I lucked out. Good to feel like a complete moron every once in a while. Thanks for your response, it was reassuring.
 
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Dunbar

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Lifetime Member

Equipment
L2501 LA525 QA PFL2042 Forks RCR1860 FDR1672 BB1560 EA55 WR Grapple FitRite TnT
Aug 2, 2018
217
11
18
Texas
I got a pair of these just for the tractor. Yellow for diesel.

YP Racing yellow.jpg
 
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ipz2222

Active member

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L235, bx2670
May 30, 2009
1,927
33
38
chickamauga ga usa
This gets mentioned so often, I have formed an eternal fear and instinctively stop when I reach for the fuel cap on my diesel vehicles. DIESEL ONLY !!! Maybe , just maybe I'll never make that mistake.
 

Jackie Brown jr

New member

Equipment
Kubota L2501
Apr 26, 2026
3
0
1
Alabama
Can someone tell me how how to fix my Orange Tractor.!!!! I put gas in the tank and ran it for about 10 mins and it shut down,,,can you help me with this please ??????
 

Jackie Brown jr

New member

Equipment
Kubota L2501
Apr 26, 2026
3
0
1
Alabama
Hey I just put gas in my diesel tractor. It is a Kabota K2501. I don’t know where to find the fuel filters and all can someone please tell me how to drain the filters and the lines so I can get all of the gasoline out of it before refilling it with fuel.
 

Russell King

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L185F, Modern Ag Competitor 4’ shredder, Rhino tiller, rear dirt scoop
Jun 17, 2012
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You can see illustrated parts lists HERE.

Here is the fuel line diagram showing where the filter is. Apparently it is a cartridge style with a clear removable bowl.
IMG_0654.png
 

North Idaho Wolfman

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Jun 9, 2013
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Sandpoint, ID
Can someone tell me how how to fix my Orange Tractor.!!!! I put gas in the tank and ran it for about 10 mins and it shut down,,,can you help me with this please ??????
And I DONT KNOW ANYTHING ABOUT A ENGINE
Hey I just put gas in my diesel tractor. It is a Kabota K2501. I don’t know where to find the fuel filters and all can someone please tell me how to drain the filters and the lines so I can get all of the gasoline out of it before refilling it with fuel.
Responses quote #1, #2, and #3
You my friend are in need of a KUBOTA dealer tech to properly fix your L2501.

Response to quote #2)
This is NOT a DYI novice undertaking.

Response to quote #3
It's just not as simple as draining the fuel tank of the gasoline and changing the fuel filter.
The entire fuel system needs to be taken apart cleaned, lubed, reassembled, and then purged of air and contaminates.
The Injection pump has a reservoir that is right now holding gasoline in it that needs to be cleaned out, along with the pumps, and you will be incredibly lucky if it didn't destroy the pump.
 
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MapleLeafFarmer

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Lots incl. B and L kubotas
Dec 2, 2019
1,055
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E.
“Kabota K2501”

*eye twitch
i'm very careful but not dark so I assumed a newbie rented a machine with little experience and put gas in the tank??
Hence the spelling and model mis-step but heck maybe we will find out yet.
Might turn out to be legit and would hate to turn off a potential new OTT contributor.

We need all the members and action as we can get to keep this site relevant vs driving them away before they even get a foot in the door??

cheers
 
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Trash Panda

Active member

Equipment
L2501
Feb 18, 2022
177
161
43
Wyoming
i'm very careful but not dark so I assumed a newbie rented a machine with little experience and put gas in the tank??
Hence the spelling and model mis-step but heck maybe we will find out yet.
Might turn out to be legit and would hate to turn off a potential new OTT contributor.

We need all the members and action as we can get to keep this site relevant vs driving them away before they even get a foot in the door??

cheers
I don’t need anyone who can’t read.
 
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