Kubota WSM BX2380 User Manual

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WORKSHOP MANUAL

TRACTOR,MOWER

BX1880,BX2380,BX2680,

RCK60B-23BX,

RCK54-23BX,

RCK48-18BX,RCK60D-26BX,

RCK54D-26BX

KiSC issued 03, 2019 A

Table of Contents

Questions and Answers:

J
John BaileyAug 20, 2025
Why is my Kubota WSM BX2380 producing black exhaust?
- V
  vaughnamberAug 21, 2025
  If you notice black or dark gray exhaust gas from your Kubota Lawn Mower, it could be due to a few reasons. You might be overloading the mower, so try decreasing the load. It could also be due to using low-grade fuel, so switch to the specified fuel. A clogged fuel filter or air cleaner could also be the culprit, so replace the fuel filter and clean or replace the air cleaner. Finally, deficient nozzle injection can cause this issue, so repair or replace the nozzle.
T
Theodore WoodAug 23, 2025
What to do if the starter does not operate on my Kubota Lawn Mower?
- S
  Sheila RobertsonAug 23, 2025
  If the starter on your Kubota Lawn Mower isn't working, it could be due to a discharged battery (charge it), a malfunctioning starter (repair or replace it), a malfunctioning main switch (replace it), disconnected wiring (connect it), or a malfunctioning safety switch (check and replace it).
D
donaldellisonAug 26, 2025
Why is my Kubota WSM BX2380 Lawn Mower emitting blue or white exhaust gas?
- E
  Eric HodgeAug 26, 2025
  If you notice white or blue exhaust gas from your Kubota Lawn Mower, it could be due to excessive engine oil (reduce to the specified amount), worn or stuck piston rings and cylinder (repair or replace), incorrect injection timing (adjust it), or deficient compression (check it).
R
Raymond NixonAug 27, 2025
Why is my Kubota WSM BX2380 Lawn Mower using excessive lubricant oil?
- M
  Mary KlineAug 27, 2025
  If you're noticing excessive lubricant oil consumption in your Kubota Lawn Mower, it could be due to a few reasons: the piston ring's gap facing the same direction (shift ring gap direction), a worn or stuck oil ring (replace it), a worn piston ring groove (replace the piston), worn valve stem and valve guide (replace them), or worn crankshaft bearing and crank pin bearing (replace them).
C
Carol FlowersAug 30, 2025
What causes low oil pressure in my Kubota Lawn Mower?
- S
  Stephen WilliamsAug 30, 2025
  If you have low oil pressure in your Kubota Lawn Mower, it could be due to several reasons. The engine oil might be insufficient, so fill it up. The oil strainer could be clogged, so clean it. The relief valve might be stuck with dirt, so clean it. The relief valve spring might be weak or broken, so replace it. There could be excessive oil clearance of the crankshaft bearing, crankpin bearing, or rocker arm, so replace them. The oil passage might be clogged, so clean it. You might be using a different type of oil, so use the specified type of oil. The oil pump might be damaged, so replace it. Finally, the oil filter might be clogged, so replace it.
P
Peter CollinsSep 1, 2025
Why is the engine revolution not smooth on my Kubota Lawn Mower?
- K
  Kimberly SavageSep 1, 2025
  If your Kubota Lawn Mower's engine revolution isn't smooth, several factors could be at play. Start by checking the fuel filter for clogs or dirt and replace if necessary. The air cleaner might also be clogged, so clean or replace it. Ensure the injection pipe retaining nut is tightened to prevent fuel leaks. Issues with the injection pump, such as malfunctioning, may require repair or replacement. Other potential causes include incorrect nozzle opening pressure (adjust it), a stuck or clogged injection nozzle (repair or replace), or a malfunctioning governor (repair).
S
Stacey YoungSep 3, 2025
Why is my Kubota Lawn Mower engine overheating?
- C
  Christopher KiddSep 3, 2025
  If your Kubota Lawn Mower is overheating, there are several possible causes. Check if the engine oil or coolant levels are insufficient and fill if needed. Inspect the fan belt for breakage or elongation, and replace or adjust it accordingly. Clean any dust clogging the radiator net and fins. If the inside of the radiator or coolant flow route is corroded, clean or replace them. A damaged radiator cap should be replaced. Avoid overload operating by reducing the load. Finally, a damaged head gasket should be replaced.
E
eric37Sep 5, 2025
Why does my Kubota WSM BX2380 have deficient output?
- B
  Brian SmallSep 6, 2025
  If your Kubota Lawn Mower is experiencing deficient output, it could be due to several reasons. Incorrect injection timing may be the cause, so you should adjust it. The engine's moving parts might be seizing, requiring repair or replacement. A malfunctioning injection pump or deficient nozzle injection can also lead to this issue, so repair or replace the pump or nozzle as needed. Additionally, a dirty or clogged air cleaner can reduce output, so clean or replace it. Finally, a compression leak may be the problem, requiring you to replace the head gasket and tighten the cylinder head screws, glow plug, and nozzle holder.
E
Emily TorresSep 8, 2025
Why does the battery on my Kubota WSM BX2380 quickly discharge?
- A
  Amy ThompsonSep 8, 2025
  If your Kubota Lawn Mower's battery is quickly discharging, it could be due to insufficient battery electrolyte (fill with distilled water and charge), a slipping fan belt (adjust belt tension or replace), disconnected wiring (connect it), a damaged rectifier (replace it), a damaged alternator (replace it), or a damaged battery (replace it).
D
Dawn TaylorSep 12, 2025
Why is fuel mixing into the lubricant oil in my Kubota WSM BX2380 Lawn Mower?
- T
  Tina HawkinsSep 12, 2025
  If fuel has mixed into the lubricant oil of your Kubota Lawn Mower, it could be due to a worn injection pump plunger (repair or replace), deficient nozzle injection (repair or replace nozzle), or a broken injection pump (replace).

Kubota WSM BX2380 Specifications

General

Fuel Type	Diesel
Transmission Type	Hydrostatic
Drive Type	4WD
Deck Type	Mid-mount
Engine Type	Diesel
Displacement	1.123 L
Cutting Height	1 - 4 inches (2.5 - 10.2 cm)
Engine Power	23 hp (17.2 kW)

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