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EF2800i
Yamaha EF2800i Service Manual
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SER
VICE MANU
AL
EF2800i
LIT
-19616-00-92
7VU-28197-10
310115
2
Table of Contents
default chapter
6
Table of Contents
6
Chapter 1. General Information
9
Machine Identification
9
Serial Number
9
Starting Serial Number
9
Important Information
10
Preparation for Removal and Disassembly Caution on Service
10
Notes on Service
10
All Replacement Parts
11
Gaskets, Oil Seals, and O-Rings
11
Bearings and Oil Seals
11
Special Tools and Testers
12
Periodic Inspections and Adjustments
14
Introduction
14
Maintenance Intervals Chart
14
Periodic Maintenance/Lubrication Intervals
14
Engine
15
Engine Oil Leakage Checking
15
Oil Level Checking
15
Oil Replacement
16
Fuel Leakage
17
Fuel Cock Strainer Inspection
17
Fuel Tank Filter
18
Air Filter Element
19
Muffler
20
Valve Clearance Adjustment
21
Compression Pressure
23
Rated Engine Speed
24
Breather Hose
24
Electrical
25
Spark Plug
25
Engine Switch
26
Economy Switch
26
Pilot Light
26
Receptacle
27
DC Circuit Breaker
27
Chapter 3. Engine
29
Control Panel
29
Control Box Cover and Fuel Tank
31
Muffler and Air Cleaner
32
Breather Hose Installation
33
Muffler Assembly
33
Control Unit and Ac-CDI Unit
34
Engine
35
Cylinder Head Cover and Cylinder Head
36
Push Rod Inspection
38
Cylinder Head Inspection
38
Cylinder Head Assembly
39
Breather Hose Assembly
39
Valve
40
Valve and Valve Spring Removal
41
Valve and Valve Spring Inspection
41
Locker Arm Inspection
42
Valve Seat Inspection
43
Valve Lapping
44
Valve and Valve Spring Assembly
45
Recoil Starter
46
Recoil Starter Disassembly
48
Recoil Starter Inspection
48
Recoil Starter Assembly
49
Generator
51
Magneto Rotor and Stator Coil Assembly Removal
53
Magneto Rotor and Stator Coil Assembly Installation
54
Crankcase Cover and Camshaft
56
Camshaft Inspection
57
Valve Lifter Inspection
58
Camshaft Assembly
58
Crankcase Cover Inspection
58
Crankcase Cover Installation
58
Piston, Connecting Rod, Crankshaft and Crankcase
59
Crankcase (Cylinder) Inspection
60
Piston and Piston Pin Inspection
60
Piston Ring Inspection
62
Crankshaft Inspection
62
Connecting Rod Oil Clearance Inspection
63
Piston Ring and Piston Assembly
64
Crankshaft Assembly
65
Carburetor
66
Float Height Inspection
68
Choke Cable Installation
69
Throttle Control Motor
69
Troubleshooting
70
Throttle Control System
76
Chapter 4. Electrical
78
Electrical Components
78
Circuit Diagram
79
Switches
80
Checking Switch Continuity
80
Ignition System
81
Troubleshooting Chart
81
Generator System
86
Troubleshooting Chart
86
Charging System
88
Troubleshooting
88
Chapter 5. Specifications
90
General Specifications
90
Maintenance Specifications
92
Engine
92
Generator and Electrical
95
Tightening Torque
96
General Torque Specifications
97
Definition of Units
97
Wire Routing Diagram
98
Control Box Panel and Behind Control Box
98
Engine and Generator
99
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Owner's Manual
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Yamaha EF2800i Specifications
General
Maximum AC Output
2800 watts
Rated AC Output
2500 watts
AC Voltage
120V
Engine Displacement
171 cc
Engine
4-stroke, OHV
DC Output
12V / 8A
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