This document is the owner's manual for Honda Motor Co., Ltd.'s water pump models WH15X/WH20X from 2001-2009. It provides information on how to use the water pump and its specifications.
Congratulations on your selection of a Honda water pump. This owner's manual contains the information necessary to operate the pump safely and get the best results from your new equipment. It covers essential safety procedures, control locations, and step-by-step instructions for starting and stopping the engine.
The guide also details how to perform scheduled maintenance, including checking fuel levels, changing engine oil, inspecting air filters, and servicing spark plugs. Additionally, it provides troubleshooting advice for common issues such as lack of pump output or engine failure to start.
| Engine Oil Type | SAE 10W-30, API SJ or later |
|---|---|
| Spark Plug (NGK) | BPR6ES |
| Spark Plug (DENSO) | W20EPR-U |
| Spark Plug Gap | 0.028 — 0.031 in (0.70 — 0.80 mm) |
| Carburetor Idle Speed | 1,400 +38 rpm |
Use unleaded gasoline with a pump octane rating of 86 or higher.
The pump is designed to pump only water that is not intended for human consumption, and pumping other liquids like gasoline or sea water can cause injury or damage.
You must keep the pump at least 3 feet (1 meter) away from building walls and other equipment while it is running.
You should use unleaded gasoline with a pump octane rating of 86 or higher.