1976-1979 Yamaha RD400 Service & Repair Manual
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YAMAHA RD400
MODELS 76 -79
GENUINE YAMAHA
Service Manual
LIT-11616-RD-40
RD 400C (D, E)
FOREWORD
This Service Manual has been written to acquaint the mechanic with the
disassembly. reassembly, maintenance. and troubleshooting procedures re-
quired to provide optimum performance and longevity of the unit.
The information enclosed should be closely studied to avoid unnecessary
repairs and to provide the owner with a sound. safe. dependable machine.
Other information is produced by the U.S. distributor. YAMAHA
INTERNATIONAL CORPORATION. and is necessary to provide total techni-
cal coverage regarding the product.
NOTE:--------------------------------------------
The Research and Engineering Departments of Yamaha are continually stri-
ving to further perfect all models. Improvements and modifications are
therefore inevitable.
In light of this fact. all specifications within this manual are subject to
change without notice. Information regarding changes is forwarded to all
Authorized Yamaha Dealers as soon as available.
YAMAHA
R 0400 Models '76 - '79
SERVICE MANUAL
2nd Edition - December 1976
3rd Edition -August 1979 JEM
4th Edition ~ January 1980 OCLC
5th Edition - July 1980 OCLC
ALL RIGHTS RESERVED BY
YAMAHA MOTOR CORPORATION, U.S.A.
BUENA PARK, CALIFORNIA 90620
LIT-11616-RD-40
RD400C
INDEX
GENERAL
INFORMATION
PERIODIC INSPECTION
AND ADJUSTMENT
ENGINE OVERHAUL
CARBURETION
CHASSIS
ELECTRICAL
APPENDICES
RD 400F SUPPLEMENT
CHAPTER 1. GENERAL INFORMATION
1-1. MACHINE IDENTIFICATION
The frame serial number is located on the
right-hand side of the headstock assembly.
The first three digits identify the model. This
is followed by a dash. The remaining digits
identify the production number of the unit.
The engine serial number is located on a
raised boss on the upper rear. right-hand side
of the engine. Engine identification follows
the same code as frame identification.
1. Frame serial number 2. Engine serial number
-3-
1-2. SPECIAL TOOLS
0
No.
Description
Tool No.
No. Description
Tool No.
1
Armature puller bolt
90890-0 1111
90890-0 1171
2
Clutch holding tool
90890-01024
3
Dial gauge stand #2
90890-0 119 5
4
Dial gauge needle
~0890-03042
L=56 mm (2.24 in)
8 Cylinder cup installer
(Front disc)
90890~0 1219
(Rear disc)
9 Drive chain cutter 90890-01081
5
Dial gauge
90890-03002
6
Point checker
90890-03064
7
Steering nut wrench
90890-01051
10
Fork spring guide
90890-01212
wrench
11
Electro tester
90890-03021
12
Pocket tester 90890-03096
-4-
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The Full 1976-1979 YAMAHA RD400 SERVICE MANUAL Service Manual (Repair Manual, Shop Manual, Workshop Guide)
This service manual is essential for maintaining and repairing your 1976-1979 YAMAHA RD400. It includes:
- Detailed Procedures with Pictures
- Exploded Parts Diagrams
- Troubleshooting and Electrical
- Engine Rebuild, Valve jobs, Transmission, Suspension
- Fully covering the servicing of your Motorcycle Wheel to Wheel
The 1976-1979 YAMAHA RD400 Service Manual is guaranteed to match your specific motorcycle's model and year. Any supplementary manuals required to cover all the model years listed are checked for and included in the listings. The printable 1976-1979 YAMAHA RD400 REPAIR MANUAL is bookmarked and keyword searchable, ensuring the highest quality and ease of use.
This manual is suitable for both professional mechanics and DIY enthusiasts. It is the right manual for the right job, right away.
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