Kubota D1305-E3BG User Manual (English)

Questions and Answers:

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ashleywhiteAug 4, 2025
What to do if Kubota Engine suddenly stops?
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  Brian PalmerAug 4, 2025
  If your Kubota Engine suddenly stops, first check the fuel tank and refill if necessary, also check the fuel system for air or leaks. A bad nozzle can also cause this, so replace it with a new one if needed. Additionally, moving parts may be overheated due to a shortage of lubrication oil or improper lubrication. Check the engine oil level with the oil level gauge and inspect the lubricating oil system. Replace the oil filter cartridge every two oil changes.
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Melanie ShahAug 8, 2025
How to start a Kubota Engine that is difficult to start?
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  Brandy BrennanAug 8, 2025
  If you're finding it difficult to start your Kubota Engine, begin by checking the fuel tank and fuel filter for any water, dirt, or impurities, cleaning the filter with kerosene. Air or water in the fuel system can also be the culprit; check for loose fuel line couplings or cap nuts and eliminate air from the fuel system by loosening the joint bolt stop fuel filter and air vent screws of fuel injection pump. In cold weather, thick engine oil can slow cranking, so change the oil grade according to the temperature. Lastly, a discharged battery can prevent the engine from cranking, so charge the battery and, in winter, remove it for indoor storage, installing it only when needed.
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Mary FranklinAug 12, 2025
What to do if Kubota D1305-E3BG Engine must be stopped immediately due to overheating?
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  Brandi HarrisAug 12, 2025
  To address Kubota Engine overheating, first, check the oil and coolant levels and replenish if needed. Inspect the fan belt for damage or looseness and replace or adjust it. Clean any dust from the radiator net or fins. If the issue persists, consider that the excessive antifreeze concentration may be the cause, so add only water or switch to the specified coolant mixture. Other potential causes include a defective fan, radiator, radiator cap, thermostat, temperature gauge, or sensor, which would require replacement. Overload running can also cause overheating, so reduce the load. Finally, a defective head gasket or water leakage or unsuitable fuel may be the cause, requiring parts replacement or using the specified fuel.
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Rachel GarzaAug 17, 2025
Why the color of exhaust is especially bad from Kubota D1305-E3BG?
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  hlaneAug 17, 2025
  If the exhaust color from your Kubota Engine is especially bad, the fuel may be of extremely poor quality. Use only good quality fuel, specifically No. 2-D diesel fuel. Another potential cause is a bad nozzle, which would need replacement with a new one.
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jennaharrisAug 21, 2025
What to do if color of exhaust suddenly turns dark in Kubota D1305-E3BG?
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  Guy BakerAug 21, 2025
  To address the issue of the exhaust color suddenly turning dark in your Kubota Engine, check the fuel injection system, especially the fuel injection nozzle.

Kubota D1305-E3BG Specifications

General

Engine Model	D1305-E3BG
Number of Cylinders	3
Fuel System	Indirect injection
Cooling System	Water-cooled
Aspiration	Naturally aspirated
Lubrication System	Forced lubrication
Starting System	Electric Starter
Engine Type	Vertical, water-cooled, 4-cycle
Weight	120 kg