Hyundai HY50 User Manual (English)

Christopher SampsonJul 31, 2025

What to do if my Hyundai HY50 Water Pump has no output?

T
tranleeJul 31, 2025
If your Hyundai Water Pump isn't producing any output, consider these potential causes: * The pump might not be primed, so prime it. * The hose may be collapsed, cut, or punctured, so replace it. * The strainer might not be completely underwater. Sink the strainer and the end of the suction hose completely underwater. * There could be an air leak at the connector. Replace the sealing washer if it's missing or damaged, and tighten the hose connector and clamp. * The strainer may be clogged, so clear any debris from it. * The head might be excessive. Relocate the pump and hose to reduce the head. * The engine may lack power. Consult the engine troubleshooting guide. * The hose might be damaged, too long, or have too small a diameter. Replace the discharge hose.

Model	HY50
Type	Water Pump
Power Source	Gasoline
Displacement	163cc
Maximum Suction Head	8m
Fuel Tank Capacity	3.6 liters
Engine Type	4-stroke
Inlet/Outlet Diameter	2 inch / 2 inch

Model

HY50

Type

Water Pump

Power Source

Gasoline

Displacement

163cc

Maximum Suction Head

Fuel Tank Capacity

3.6 liters

Engine Type

4-stroke

Inlet/Outlet Diameter

2 inch / 2 inch

Summary

Safety Guidelines

Personal Protective Equipment

Lists required personal protective equipment for safe operation of the water pump.

Warning Signs and Symbols

Explains various warning signs and symbols used in the manual to indicate hazards.

Carbon Monoxide Hazards

Details the dangers of carbon monoxide gas from engine exhaust and safety precautions.

General Fuel Safety

Provides safety guidelines for handling and storing flammable fuels.

Petrol Safety

Specific safety instructions for fueling and handling petrol.

Additional Safety Guidelines

Covers fire prevention, burn prevention, general usage rules, and authorized attachments.

Starting Safety Precautions

Outlines essential safety steps and considerations before starting the engine.

Component Location

HY50 and HYC50 Component Identification

Diagrams and labels identifying key components of HY50 and HYC50 water pump models.

HY80 and HYT80 Component Identification

Diagrams and labels identifying key components of HY80 and HYT80 water pump models.

Pre-Operation Inspection

General Inspection and Safety

Ensures user understanding, proper operation, ventilation, and fire prevention before use.

Routine Checks

Covers checks for leaks, debris, damage, and tightness of fasteners and connections.

Hose and Strainer Inspection

Details checks for suction and discharge hoses, connectors, clamps, and strainers.

Engine Oil Level Check

Instructions for checking the engine oil level to prevent damage.

Air Filter Inspection and Cleaning

Procedure for checking, cleaning, or replacing the air filter for optimal performance.

Fuel Level Check

Procedure for checking the fuel level before operation.

Assembly and Operation

Safe Operating Precautions

Ensures user understands operation and controls for safe and proper use.

Pump Placement Guidelines

Advice on positioning the pump for optimal performance and efficiency.

Connecting Suction Hose

Step-by-step guide for connecting the suction hose to the pump securely.

Connecting Hose Strainer

Instructions for attaching the hose strainer to the suction hose to prevent debris.

Hose Diameter Recommendations

Specifies minimum hose diameters for 2" and 3" water pumps for optimal flow.

Installing Discharge Hose

Guidance on connecting the discharge hose for efficient fluid transfer.

Priming the Pump

Essential steps to prime the pump before operation to prevent seal damage.

High Altitude Operation

Discusses effects of high altitude on engine performance and potential modifications.

Starting and Stopping the Engine

Starting the Engine

Detailed procedure for starting the water pump engine, including controls and safety checks.

Stopping the Engine

Instructions for safely shutting down the water pump engine and performing post-use checks.

Maintenance

Engine Oil Change Procedure

Step-by-step guide for draining, replacing, and disposing of used engine oil.

Recommended Engine Oil

Specifies the type and grade of engine oil suitable for the pump and operating temperatures.

Air Filter Service

Details on servicing the air filter, emphasizing its importance for engine performance.

Spark Plug Service

Instructions for checking, cleaning, gapping, and replacing the spark plug.

Engine Parameters

Key engine specifications including spark plug gap, idle speed, and valve clearance.

Storage

Pump Storage Preparation

Steps for preparing the pump for storage, including flushing and cleaning.

Carburetor Storage Preparation

Procedure for draining fuel from the carburetor and fuel tank for storage.

Engine Oil for Storage

Instructions for adding oil to the cylinder for long-term storage to prevent corrosion.

Troubleshooting

Engine Troubleshooting

Lists common engine starting problems, their causes, and corrective actions.

Water Pump Troubleshooting

Addresses issues like no output, low output, and causes related to hoses and engine.

Wiring Diagram

Electrical Wiring Diagram

Schematic showing the electrical connections for the engine and its components.

Specifications

Model Specifications

Table detailing technical specifications for HY50, HYC50, HY80, and HYT80 models.

Declaration of Conformity

CE Directives Conformance

Confirms the water pumps comply with relevant European CE directives.

Noise Emissions Directive

Details compliance with the 2000/14/EC directive concerning noise emissions.

Contact Details

Company Contact Information

Provides postal address, telephone number, email, and website for customer support.

Hyundai HY50 User Manual

Table of Contents

Questions and Answers:

Hyundai HY50 Specifications