Key facts
Start here
Honda WT20X/WT30X/WT40X Trash Pump Owner's Manual
Congratulations on your selection of a Honda water pump. This manual contains the necessary information to operate your new trash pump safely and effectively. It covers important safety precautions, such as avoiding carbon monoxide hazards and ensuring the engine is off when leaving the pump unattended.
The guide details how to install suction and discharge hoses, prime the pump, start the engine, and adjust the throttle. It also outlines a maintenance schedule for checking fuel levels, oil changes, air filters, spark plugs, and sediment cups to ensure optimal performance.
Honda WT20 specifications
| Fuel Type | Unleaded gasoline with a pump octane rating of 86 or higher |
|---|---|
| Engine Oil Type (General) | SAE 10W-30, API SJ or later |
| Maximum Oil Capacity (WT20X) | 19.6 oz (0.58 L) |
| Spark Plug Type | NGK BPR6ES or DENSO W20EPR-U |
| Spark Plug Gap | 0.028 — 0.031 in (0.7—0.8 mm) |
All Honda WT20 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
- Honda WT20X/WT30X Trash Pump Owner's Manual 35 p
- Honda WT20X/WT30X/WT40X Water Pump Owner's Manual 64 p
- Honda WT20X/WT30X/WT40X Water Pump Owner's Manual 64 p
- Honda WT20X/WT30X/WT40X Water Pump Owner's Manual 64 p
- Honda WT20X/WT30X/WT40X Water Pump Owner's Manual 64 p
- Honda WT20X/WT30X/WT40X Trash Pump Owner's Manual 68 p
- Honda WT20X/WT30X/WT40X Trash Pump Owner's Manual 68 p
- Honda WT20/30 Water Pump Owner's Manual 7 p
Questions answered in these manuals
What liquids should not be pumped by this trash pump?
Do not pump flammable or corrosive liquids such as gasoline or acid. Also avoid sea water, chemical solutions, and caustic liquids like used oil, wine, or milk.
What happens if the engine oil level is too low?
The Oil Alert System will automatically stop the engine before the oil level falls below the safe limit.
What fuel should be used for this water pump?
Use unleaded gasoline with a pump octane rating of 86 or higher.
How often should the engine oil be changed?
The first change is due after 20 hours of use, and subsequent changes follow the maintenance schedule.
What liquids can this pump handle?
The pump is designed to pump only fresh water that is not intended for human consumption. Pumping flammable liquids or corrosive solutions can cause injury or damage.
Where should I refuel the pump?
You must refuel outdoors in a well-ventilated area with the engine stopped and the pump on a level surface.