Power Stroke PS903500A

Questions and Answers

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Linda WellsAug 1, 2025
How to fix a Power Stroke PS903500A that will not start?
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  Luis TaylorAug 1, 2025
  If your Power Stroke Portable Generator engine won't start, several factors could be at play. First, ensure the fuel tank isn't empty and that the gasoline isn't stale or contaminated with water; if it is, drain the system and refill with fresh fuel. Check the engine lubricant level, as the engine is equipped with a Low Oil Shutoff, and fill if necessary. Verify that the fuel valve is turned on and that the spark plug isn't faulty, fouled, or improperly gapped—replace it if needed. Also, make sure the choke lever is in the START position. If the engine was stored without proper treatment or was refueled with bad gasoline, drain the fuel and carburetor, then refuel with fresh gasoline. Lastly, a dirty fuel filter could be the culprit; replace it or contact an authorized service center.
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Hannah GarciaAug 7, 2025
Why is my Power Stroke Portable Generator engine hard to start?
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  wrighttanyaAug 7, 2025
  If your Power Stroke Portable Generator engine is hard to start, there might be water in the gasoline. Drain the entire system and refill with fresh fuel. Another potential cause is a weak spark at the spark plug. Replace the spark plug or contact an authorized service center.
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Jasmin GarciaAug 13, 2025
What causes a Power Stroke PS903500A engine to lack power?
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  troymitchellAug 13, 2025
  If your Power Stroke Portable Generator engine lacks power, the air filter element might be clogged. Check it and clean or replace it as needed. Additionally, the engine might have been stored without treating or draining gasoline, or it was refueled with bad gasoline. In this case, drain the fuel and carburetor and refuel with fresh gasoline.
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Brandy HernandezAug 19, 2025
What to do if AC receptacle does not work on Power Stroke PS903500A?
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  Tara ParkerAug 20, 2025
  If the AC receptacle on your Power Stroke Portable Generator isn't working, the circuit breaker might be off. Turn it ON. Also, the item you've plugged in could be defective, so try a different item to rule that out.
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Michael MillerAug 26, 2025
Why does my Power Stroke PS903500A make a “spark knock” or “pinging” noise?
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  katie30Aug 26, 2025
  An occasional light knocking or pinging noise under heavy load is usually not a cause for concern. However, if the knocking or pinging occurs under normal load at a steady engine speed, try switching to a different brand of gasoline, ensuring that the octane rating is 86 or higher. If the problem persists, contact your nearest authorized service center.

Summary

Introduction

Grounding the Generator

Important Safety Instructions

Carbon Monoxide Hazard

Generator exhaust contains deadly carbon monoxide gas. Operate outdoors only.

Grounding Requirements

Generator must be grounded to an approved earth ground per National Electric Code.

Specific Safety Rules

Building Wiring System Safety

Generator connection to building wiring requires a qualified electrician and transfer switch.

Prohibited Operations

Do not use for medical devices, near hazardous materials, or at fueling stations.

Operational Safety Practices

Maintain clearance, keep dry, use flat surface, keep children away.

Fueling and Refueling Precautions

No smoking, proper fill level, cool down before refueling.

Electrical Compatibility and Checks

Check electronic requirements, inspect unit, ensure proper operating conditions.

Symbols and Signal Words

Signal Word Meanings

Explains DANGER, WARNING, CAUTION, and NOTICE signal words and their meanings.

Product Symbol Explanations

Explains common symbols used on the product for safety and operation.

Safety Labels

Understanding Safety Labels

Study and understand all labels on the generator before starting operation.

Warnings and Precautions

Fuel Handling Safety

Includes no smoking, proper fill level, and cool down before refueling.

Engine Lubricant Requirements

Must add initial lubricant, always check level; low oil shut-off feature.

Hot Surface and Clearance Warnings

Avoid touching hot parts and maintain clearance from combustible materials.

Spark Arrestor Information

Inspect spark arrestor for breaks; local fire agencies may require one.

Electrical Information

Extension Cord Cable Size Guide

Table for selecting appropriate extension cord cable size based on current and voltage.

Electric Motor Loads

Estimates watts required to start electric motors for load matching.

Electronic Equipment Compatibility

Check electronic equipment voltage/frequency requirements before plugging in.

Generator Capacity and Load Management

Determining Power Needs

Select items and total their running and starting watts to match generator capacity.

Power Management Strategy

Sequentially add loads to the generator to prolong life and protect devices.

Overload Warning

Do not overload generator capacity; it may damage generator and connected devices.

Features and Specifications

Product Specifications

Details engine and generator specs, including output, dimensions, and volume.

Generator Components Overview

Describes key components like circuit breakers, air filter, fuel system, and receptacles.

Safety and Operational Features

Highlights features like ground terminal and low oil shut-down protector.

Assembly Instructions

Unpacking and Parts Check

Instructions for unpacking the generator and checking contents against the loose parts list.

Tools Needed for Assembly

Lists tools required for assembly that are not included with the generator.

Installing the Feet

Step-by-step guide for installing the rubber feet onto the generator.

Operation Guidelines

Critical Operation Hazards

Dangers of carbon monoxide and electrocution if generator is misused.

Operational Carefulness and Warnings

Do not be careless; avoid unauthorized accessories for safety.

Operation Procedures

Before Operating the Unit

Ensure outdoor use, proper placement, and review special requirements.

Lubricant and Fuel Management

Instructions for checking/adding lubricant, using fuel stabilizer, and handling oxygenated fuels.

Checking and Adding Fuel

Guidelines for safe fueling, including surface, temperature, and location requirements.

Engine Operation

Starting the Engine

Procedure for starting the engine, including pre-start checks and choke operation.

Stopping the Engine

Steps for normal and emergency engine shutdown.

Moving and Lifting the Generator

Instructions on how to safely move and lift the generator.

High Altitude Operation

Note on modifications needed for high altitude operation.

Maintenance Procedures

General Maintenance Practices

Keep unit clean and dry, avoid garden hose cleaning, clean air vents.

Air Filter Maintenance

Checking, cleaning, and replacing the air filter for optimal performance.

Engine Lubricant Maintenance

Procedures for changing engine lubricant, including warnings and disposal.

Spark Plug Maintenance

Steps for inspecting, cleaning, gapping, and installing the spark plug.

Maintenance Tasks

Spark Arrestor Maintenance

Inspect, clean, and replace the spark arrestor as needed.

Draining Fuel Tank and Carburetor

Procedures to drain fuel for storage to prevent gum deposits.

Replacing the Fuel Filter

Steps for replacing a clogged fuel filter, requiring an empty tank.

Transporting the Generator

Safety guidelines for transporting the generator, including cooling and emptying the tank.

Storage and Maintenance Schedule

Storage Preparation Guidelines

Procedures for preparing the generator for storage based on duration.

Maintenance Schedule Overview

Schedule outlining regular checks and services for engine lubricant, filters, plugs, etc.

Troubleshooting Guide

Engine Starting and Power Issues

Solutions for engine not starting, hard starting, or lacking power.

Electrical and Noise Issues

Troubleshooting for AC receptacles not working or engine making noise.

Emissions-Related Performance Issues

Identifying and addressing symptoms affecting emissions.

Limited Non-Engine Warranty Statement

OWT Industries Warranty Coverage

OWT Industries warrants products against defects in material/workmanship for specified periods.

Warranty Exclusions and Limitations

Details what is not covered, including misuse, neglect, and unauthorized modifications.

Obtaining Warranty Service

Contact information and procedures for obtaining warranty service.

Limited Engine Warranty Statement

Rato Engine Warranty Coverage

Rato warrants engines against defects in material/workmanship for two years.

Engine Warranty Limitations and Exclusions

Lists specific exclusions like damage from storage, overheating, or improper maintenance.

Warranty Disclaimer

States that this warranty is in lieu of all other express or implied warranties.

Emission Control Warranty Statement

Emission Warranty Rights and Obligations

Explains owner responsibilities and warranty coverage for emission control systems.

Manufacturers Emission Warranty Coverage

Emissions control system warranted for two years; defective parts repaired/replaced.

Interpretation of Emission Parts Warranty

Details how warranty applies to parts scheduled for replacement or inspection.

Federal Evaporative Emission Control Warranty Statement

Evaporative Emission Warranty Rights and Obligations

Explains owner responsibilities and warranty coverage for evaporative emission systems.

Manufacturers Evaporative Warranty Coverage

Evaporative emission control system warranted for three years; defective parts repaired/replaced.

Interpretation of Evaporative Emission Parts Warranty

Details how warranty applies to parts scheduled for replacement or inspection.