Hello! I am posting about my Kubota BX tractor that I recently performed a maintenance on. While operating now the engine will cut off while in motion, sometimes cutting immediately back in, sometimes shutting off entirely. I changed the inlet air filter, both fuel filters, the oil filter and the oil on the tractor during the maintenance I performed. I'm not super familiar with diesel engines or tractors, but I do work in the HVAC field and have a lot of experience on oil boilers/burners, so I am familiar with purging the fuel line after changing these filters. It does seem like a fuel starvation issue, but the abruptness of when it cuts out, then back in is concerning to me. Thank you in advance for any help you can provide!
Kubota BX cutting in and out
- Thread starter Rinzloor
- Start date
85Hokie
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Equipment
BX-25D ,PTB. Under Armor, '90&'92-B7100HST's, '06 BX1850 FEL
I am assuming that when you changed BOTH fuel filters you turned the key to the RUN position for 30+ seconds to allow the air to be purged from the system?
IF you did this, I would check the seat switch which do as you describe - especially if you move forward on the seat while moving.
Fuel starvation make the engine sputter most of the time - the seat switch will kill the engine then allow it to run once contact is made again.
While sitting in the seat - place the throttle in WOT position - does it bog down?
IF you did this, I would check the seat switch which do as you describe - especially if you move forward on the seat while moving.
Fuel starvation make the engine sputter most of the time - the seat switch will kill the engine then allow it to run once contact is made again.
While sitting in the seat - place the throttle in WOT position - does it bog down?
GreensvilleJay
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BX23-S,57 A-C D-14,58 A-C D-14, 57 A-C D-14,tiller,cults,Millcreek 25G spreader,
faulty seat switch ? That WILL kill engine in 2-3 seconds.
unlikely 'fuel' though look at the filter between the two pumps, if full then not fuel.
unlikely 'fuel' though look at the filter between the two pumps, if full then not fuel.
Thank you for the replies. I was leaning toward the seat switch, specifically because the cutting out occurs more when my girlfriend (who weighs less than I) drives the tractor. As part of the maintenance I did hose some dirt and manure off of the foot platform and I wonder if water got into the switch. I also recently rotated the seat to use the backhoe attachment. I will check the switch out!
Haha I'm sure! The only hesitation I had about it was the proximity to the maintenance I did. We started having these issues the day after I did it, which made me think it was something that I had done.
I've never missed the seat switch that did not come on my BX2200, OR my B2910 with backhoe and loader... Hint, hint... 
Big Brother Mr. Kubota, I solemnly swear that I will not remove any safety switches from my tractor..........................I've never missed the seat switch that did not come on my BX2200, OR my B2910 with backhoe and loader... Hint, hint...