Yamaha EF1000iS - NA Inverter Lightweight Portable Generator 10 User Manual

Generator
LIT-19626-01-19 7CG-28199-10
PRINTED ON RECYCLED PAPER
PRINTED IN JAPAN
04
9 04 – 1.2 × 1
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EF1000iS
OWNER’S MANUAL
7CG-28199-10 hyoshi 3/22/04 4:51 PM Page 1

Yamaha EF1000iS - NA Inverter Lightweight Portable Generator 10 Specifications

General

Maximum AC Output	1000W
Rated AC Output	900W
Displacement	50cc
Noise Level	47 dBA at 1/4 load
Starting Watts	1000W
Starting System	Recoil
Continuous Operation at 1/4 Rated Load	12 hours
Dimensions	17.7 x 9.4 x 14.9 in
DC Output	12V, 8A
Engine	4-stroke, OHV, single cylinder

Summary

Safety Information Overview

Understanding Safety Alerts and Warnings

Understand manual, safety alerts, and warnings about severe injury or death.

Location of Important Labels

Safety and Warning Labels

Explains important safety labels and warnings to be read before operating.

Critical Safety Information

Exhaust Fumes Poisoning Hazard

Warns about poisonous carbon monoxide in exhaust fumes and the need for ventilation.

Fuel Flammability and Poisoning Precautions

Covers fuel flammability, poisoning risks, refueling precautions, and spill management.

Hot Engine and Muffler Safety

Generator Safety Practices

Electric Shock Prevention Measures

Crucial safety guidelines to prevent electric shock, including avoiding rain and wet hands, and proper grounding.

Generator Connection Safety

Grounding Lead Requirements

Details the requirements for the ground (earth) lead, including diameter and capacity.

Correct Generator Connection Methods

Generator Control Operations

Oil Warning System Functionality

Explains how the oil warning system functions to stop the engine when oil is low.

Pre-Operation Checks

Engine and Muffler Hot Warning

Fuel Level and Refueling Procedures

Details checking fuel level, recommended fuel type, capacity, and safe refueling practices.

Pre-Operation Checks Continued

Engine Oil Level Inspection

Instructions for checking engine oil level, recommended oil types, and quantity.

Grounding Generator Reminder

Reminds users to ground the generator and refers to safety information.

Generator Operation

Starting the Engine Step-by-Step

Step-by-step guide on how to start the generator engine.

Generator Starting Procedures

Choke Knob Usage for Starting

Recoil Starter Engagement

Generator Application Range

AC and DC Power Output Capabilities

Overload Indicator Function

Connecting Electrical Devices

AC Receptacle Connection Steps

Step-by-step guide for connecting electrical devices to the generator's AC receptacle.

Overload Indicator Light Operation

Troubleshooting Overload Conditions

Battery Charging Safety Hazards

Battery Electrolyte Safety and First Aid

Warns about battery gas ignition, poisonous electrolyte, and provides first aid instructions for contact.

Stopping the Generator Engine

Engine Shutdown Sequence

Step-by-step guide on how to properly stop the generator engine.

Periodic Maintenance Schedule

Maintenance Chart (Items 1-7)

Details maintenance for spark plug, valve clearance, breather, exhaust, oil, air filter, and fuel filter.

Periodic Maintenance Schedule (Continued)

Maintenance Chart (Items 8-14)

Covers fuel line, choke, cooling, starting systems, generation, and fasteners maintenance.

Spark Plug and Carburetor Service

Spark Plug Inspection and Gap Check

Engine Oil Replacement Guide

Draining Engine Oil

Step-by-step instructions for draining the engine oil, including warming up the engine.

Refilling Engine Oil

Instructions for refilling the engine with the correct type and amount of oil.

Engine Oil and Muffler Maintenance

Post-Oil Change Procedures

Muffler Screen Removal and Cleaning

Muffler, Spark Arrester, and Air Filter

Spark Arrester Cleaning and Installation

Air Filter Cleaning and Oiling

Air Filter and Fuel Tank Filter Service

Air Filter Reassembly Steps

Caution: Operating Without Air Filter

Fuel Tank Filter Cleaning and Replacement

Troubleshooting Common Issues

Engine Start Failure Diagnosis

Provides solutions for common engine starting problems related to fuel, oil, and electrical systems.

Generator Power Output Issues

Troubleshooting steps for when the generator fails to produce power, focusing on safety devices.

Troubleshooting Engine Start Problems

Engine Start Diagnostics Flowchart

A flowchart to diagnose and resolve engine starting issues based on symptoms.