Yamaha EF1000iS Service Manual

Name: Yamaha EF1000iS
Brand: Yamaha
Rating: 4 (1 reviews)

109 pages

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SERVICE MANUAL

EF1000iS

LIT-19616-01-02 7VV-28197-10

310137

7VV-Cover 02.9.26 2:30 PM Page 1

Default Chapter6
- Default Chapter6
  - Table of Contents6
- Chapter 1. General Information8
Machine Identification8
- Serial Number8
- Starting Serial Number8
Important Information9
- Preparation for Removal and Disassembly Caution on Service9
- Notes on Service9
- All Replacement Parts10
- Gaskets, Oil Seals, and O-Rings10
- Bearings and Oil Seals10
- Special Tools and Testers11
- Chapter 214
- Periodic Inspections and Adjustments14
Introduction14
Maintenance Intervals Chart14
Periodic Maintenance/Lubrication Intervals14
Covers16
Engine17
- Engine Oil Leakage Checking17
- Oil Level Checking17
- Oil Replacement18
- Fuel Leakage19
- Fuel Tank Filter19
- Fuel Tank Strainer20
- Air Filter Element21
- Muffler22
- Valve Clearance Adjustment23
- Compression Pressure25
- Rated Engine Speed26
- Breather Hose26
Electrical27
- Spark Plug27
- Engine Switch28
- Economy Switch28
- Pilot Light28
- Receptacle29
- DC Circuit Breaker29
- Chapter 3. Engine31
Control Box31
- Control Box Disassembly32
- Control Box Assembly34
Engine35
Recoil Starter and Rotor36
- Recoil Starter Disassembly37
- Recoil Starter Inspection38
- Recoil Starter Assembly39
- Ignition Coil and Rotor Removal40
- Ignition Coil and Rotor Installation41
Muffler42
Generator43
- Rotor and Stator Coil Assembly Removal44
- Stator Coil Installation44
Crankcase2, Camshaft and Rocker Arm46
- Camshaft Inspection48
- Cam Follower Inspection48
- Push Rod Inspection48
- Rocker Arm Inspection49
- Crankcase 2 Inspection49
- Camshaft and Locker Arm Installation49
Crankshaft, Piston and Piston Ring51
- Piston and Piston Pin Inspection53
- Piston Ring Inspection54
- Crankshaft Inspection55
- Connecting Rod Oil Clearance Inspection56
- Piston and Piston Ring Installation57
- Connecting Rod and57
- Crankshaft Installation57
Cylinder (Crankcase 1) and Valve59
- Valve and Valve Spring Removal61
- Valve and Valve Spring Inspection61
- Valve Seat Inspection63
- Cylinder (Crankcase 1) Inspection65
- Valve and Valve Spring Assembly65
- Chapter 467
Fuel Pump, Fuel Tank and Fuel Change Link72
- Fuel Pump Inspection74
- Fuel Tank Filter Inspection74
- Chapter 5. Electrical76
Electrical Components76
- Circuit Diagram77
Switches78
- Checking Switch Continuity78
Ignition System79
- Troubleshooting Chart79
Generator System83
- Troubleshooting Chart83
- Chapter 686
- Troubleshooting86
Engine86
Throttle Control System91
- Chapter 7. Specifications94
General Specifications94
Maintenance Specifications96
- Engine96
- Generator and Electrical99
Tightening Torque100
General Torque Specifications101
Definition of Units101
Lubrication Point and Type of Lubricants102
Wire Routing Diagram103

Other manuals for Yamaha EF1000iS

Owner's Manual58 pages

Questions and Answers:

A
Ashley MayerJul 26, 2025
Why won't my Yamaha Portable Generator start?
- K
  Kimberly GutierrezJul 26, 2025
  Your Yamaha Portable Generator might not start due to several reasons: * No fuel is being supplied to the combustion chamber: Supply fuel. * Fuel tank cap air vent knob is not in the correct position: Turn the fuel tank cap air vent knob to 'OPEN' (turn it 1 turn counterclockwise). * Fuel cock knob is not in the correct position: Turn the fuel cock knob to 'ON'. * There is a clogged fuel line: Clean the fuel line. * There is a clogged carburetor: Clean the carburetor. * The oil level is low: Add engine oil. * The engine switch is not 'ON': Turn the engine switch (Red) to 'ON'. * The spark plug is dirty with carbon or wet: Remove carbon or wipe the spark plug dry. * Faulty ignition system or worn out piston and cylinder: Consult dealer.

Yamaha EF1000iS Specifications

General

Type	Inverter
Maximum AC Output	1000 watts
Rated AC Output	900 watts
Noise Level at 1/4 Load	47 dBA
Rated AC Voltage	120V
Continuous Operation at 1/4 Rated Load	12 hours
Weight	13.5 kg
DC Output	8A @ 12V