Powerhorse 750122 - User Manual

Powerhorse 750122

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SAVE THESE INSTRUCTIONS

420cc OHV Horizontal Gas Engine

Owner’s Manual

WARNING: Read carefully and understand all ASSEMBLY AND OPERATION

INSTRUCTIONS before operating. Failure to follow the safety rules and other basic safety

precautions may result in serious personal injury.

Item #750122

Table of Contents

Questions and Answers

A
Angela MatthewsJul 30, 2025
What to do if my Powerhorse 750122 Engine will not start?
- J
  Jeffrey HughesJul 30, 2025
  If your Powerhorse Engine won't start, there are several potential causes. First, check if you're out of fuel; if the engine is cold, make sure the choke lever is correctly set and add fuel. Another cause may be that the engine is flooded, in which case you should set the choke lever to the open/run position. Finally, a dirty or faulty spark plug could be the culprit. Remove the spark plug and clean it. Check the electrode spacing and set the gap to the correct dimension as described in the Maintenance Section. If the plug is damaged, replace it with a new one and ensure it's properly installed and the wire is connected.

Summary

Engine Specifications

Safety Guidelines

Understanding Safety Alerts and Symbols

Explanation of signal words (DANGER, WARNING, CAUTION) and hazard symbols.

Work Area and Personal Safety

Guidelines for safe operating environment and operator protection.

Operation and Handling Safety

Warnings and procedures for fueling, starting, operating, and stopping the engine.

Engine Hazard Awareness

Warnings about carbon monoxide, heat, burns, and rotating parts.

Safety Label Identification

Visual guide to important safety labels affixed to the engine.

Pre-Operation Checks

Engine Operation

High Altitude Operation Adjustments

Guidance on engine performance adjustments for higher altitudes.

Starting the Engine

Step-by-step instructions for starting the engine, including choke and throttle.

Stopping the Engine

Steps for safely turning off the engine under normal and emergency conditions.

Setting Engine Speed

How to adjust the throttle lever for desired engine speed.

Maintenance Procedures

Routine Maintenance Schedule

A table outlining routine service tasks and recommended intervals.

Engine Oil and Fuel Management

Recommended oil, checking/adding oil, fuel types, and safe refueling.

Spark Plug and Air Filter Service

Instructions for inspecting/replacing spark plug and servicing air filter.

Sediment Cup and Oil Draining

Cleaning the sediment cup and draining engine oil.

Electrical System Checks

Servicing the fuse and proper battery connection procedures.

Troubleshooting and Storage

Engine Starting Problems

Common causes and corrective actions for engine not starting.

Engine Storage Recommendations

Precautions for storing the engine for 30 days or more.

Parts Information

Engine Parts Diagram

Exploded view illustrating engine components and their locations.

Detailed Parts List

Comprehensive list of engine parts with reference numbers and quantities.

Ordering Replacement Parts

Information and contact details for purchasing replacement parts.

Warranty and Emissions Information

Limited Warranty Terms

Details of the product's limited warranty, coverage, and limitations.

Emissions Control Warranty

Explanation of the US EPA and California emission control system warranty.

Warranty Coverage Details

Specifics on defects warranty coverage and exclusions.

Emissions Warranty Parts List

List of engine parts covered under the emissions warranty.

Powerhorse 750122 Specifications

General

Brand	Powerhorse
Model	750122
Category	Engine
Language	English

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