XS650 Model Identification/Year/VIN, Workshop Manuals, and Other Information

Model ID......ID Charts........Online Manuals, (PDF)
Colored for county/continent variations.
Please contact me if you have any information or variances that differ from chart.
..........
original chart kindly given to me from, (link), THEXSCAFE

Online manuals
ThexsCafe
Biker.net.......Scroll down left side to XS/TX 650 Manuals

Frame Changes
1970 XS1-1973 TX......................1974 TXA-1979 F: Standard.........1978 SE-1984 SL: Special

Engine; Con-rods/Pistons
Piston/Con-rod changes, Where the gudgeon pin position is on the piston, to length of Con-rod


1970 XS1.....Code 256.......Vin S650-000101 to S650-006686US,
Candy Green
US, Canada, Australia, Japan, Other


Points Ignition

1971 XS1B.....Code 256.....Vin S650-007101 to S650-025383
Candy Orange
US, Canada, Australia, Japan, Other


1971 XS1F.....Code 256.....Vin; S650-010101 to ??????
Candy Orange
Europe, Other


1972 XS2.....Code 306, (commonly referenced as 256).......Vin S650-100101 to S650-133900
Brilliant Red/white
US

Europe, Oceania
Pearl Yellow Gold.......Brilliant Red/black


1973 TX.....Code 366, (commonly referenced as 256).......Vin; S650-200101 to S650-217100
Metallic Flake Blue, Pearl Yellow Gold
US, Canada, Other

 

1974 TXA......Code 447...VIN 447-000101 to 012150
Cinnamon Brown - Vegas green

New model......Major changes....
New Frame....Triple Tree, Crown.....Gauges
Forks 34mm.... no change

Tank, (15 Liter- 3 Gallon)......Side-covers.... Guards, (front and back).......Mufflers, (silencers).

Wheels, (rims), Alloy, W style......Wheel hub, same as 73TX

Carbs, BS38's, Not linked, 2 throttle cables

Engine 447......Major internal changes;
Pistons, con-rods......Cam chain sprockets at the Cam and Crank


1975 XSB......Code 447....Vin 447-100101 to 128650
Star Black

Europe.......Code 553....Vin 447-500101 to (600000)

 

1976 XSC......Code 584....Vin 447 200101 to 211894
French Blue, Brilliant Red
US, Canada, Oceania

Europe


1977 XSD.....Code 1T3......Vin 447700101 to 724061
Bountiful Blue, Maxi Maroon
US, Canada, Oceania

Europe

 

1978-E.....Code 2F0.....Vin; 2F0 000101 to 006141
* .................Code 2F0.....Vin; 2F0 00651 to (020000)
Star Black, Spruce Green Metallic


1978-SE.....Code 2M0.....Vin; 2F0 100101 to (150000)
Vintage Burgundy, New Midnight Blue
First of the Specials.

Aug 77 to July 78 Production date.........the Aug to July is not set in stone, sometimes there can be a month either side of the Aug/July
Frame.......... Same frame as the Standards with a different rear passenger Foot Peg mount..... brackets for MC for rear disk brake...... Rear top shock mount is set at a different angle to Standard frames
Swing-arm.....Same as the Standard with different brackets for Disc brake set up
Handle bars......New Buckhorn style
Gauge Cluster.......New gauge faces. New tower.. New separate ignition switch
Tank..................New.......Smaller, (than Standard tanks), 12 1/2 liter, Gas cap looks similar the the 76-79 Standard gas cap but does not swap.
Petcocks......Twin, Vacuum operated one to each carb
Side-covers.....Metal with Badge. New shape, same style of fitting as the Standard models, (74-79), slightly smaller top mounts. Does not interchange with standard frames. Can with some slight modification
Seat....... ........Side hinged, stepped seat with half chrome strip. Can interchange with Standard models with some modification to the latch mechanism.
Chrome passenger Grab-rail
Wheels...........Rear; 16" mag with disc brake..... Front; 19" mag with disc brake
Caliper/Brake Rotor.....Same as 77D..........US, Canada and European, US Custom, had a single front disk brake........Most other countries had twin front disk brake setup
.....MC... looks the same as 77D, MC mount is set at a different angle for new Handle bars........
Forks.........35mm..Adjustable preload caps and some change to the internals. Different to 77D.
Fenders........
......Rear; ....Shorter than standard guard, new Tail-light and Number plate light mounted with 4 bolts on rear of Guard..........will interchange with standard frames.
......Front; ...Same as the 77 and later Standards, no change
Fork ears/Headlight brackets...........Different style to standard models.........Silver Chrome, same from 78-83 except 82 has black chrome.
Carbs....BS38, 78/79 set...........Linked, with new jets and needles.
Ignition.......points

1979-F.....Code 2F0.....Vin; 2F0 020101 to (100000)
Colbalt Blue


1979-SF....Code 2M0......Vin; 2F0 150101 to (200000)
Black gold, Carmine Red
Identical to the 78SE except for the colour



1979-2F SII......Code 3N0.....Vin; 250101 to (270000)
New Yamaha Black
Factory Special Budget model.
Same as 78SE/79SF.....Except
Headlight bucket, Black
Wheels; 36 Spoke
Alloy rims, one year/model only; 16" rear, drum brake. 19" front, disk brake
Side-covers; Decals "Special II 650"


* Mid year changes, TBA



Valve Adjustment- Video

Cam Chain Tension Adjustment-Video
Different cam chain tensioners

 

1980SG



1980G SII


1981SH


1981H SII





Chapter 2 Adjustments.

Downloadable Degree Wheel

 

1982 Heritage Special


1983 Heritage Special



BUILDING A BETTER TWIN: by Joe Minton.........Results

 

Chapter 3; Engine section

 

Chapter 3; Engine section

 

Chapter 3; Engine section

 

Chapter 3; Engine section

 

Chapter 3; Engine section

 

Chapter 3; Engine section

 

Chapter 3; Engine section

 

Chapter 4; Fuel System

Carbs-Carburetors: Carb Guide first link:
JBM Industries; CV Diaphragms and Carb Manifolds. (Ethanol proof)

 

Chapter 4; Fuel System

BS CV carb tutorial; Link to PDF file.
Rebuilding Yamaha Vacuum Operated Fuel Valves (Petcocks.)

 

Chapter5; Chassis

Drilling Brake Discs; By Goran Persson's
Drilling Your Own Brake Rotors

Wheel lacing, mistakes and fix. Read through

 

Chapter 5; Chassis

Bleeding The Brakes

 

Chapter 5; Chassis

BUILDING A BETTER TWIN; by Joe Minton. Handling,(Forks and frame)
Minton Mod observations. Read in conjunction with previous link.

 

Chapter5; Chassis

"Tapered roller bearings for Steering Head"; By Goran Persson's
Swaping front ends

Swing Arm; By Goran Persson's
Swing-arm question. Good info on obscure parts

 

Chapter5; Chassis
Upgrading Brakes

Fazer Blue Spot Caliper
Stock Brake Upgrade from Ducati
Brembo brake adapter
Modern Brake Calipers

Chain tightening link
Tip; I might suggest that when you get the chain set right, if you have a drum brake on the rear, that when you tighten the axle nut you hold the brake pedal down. This expands the pads out to press evenly on the drum to center the drum around the pads. This will help the brake work better, both pads will hit the drum at the same time.