Service LabService Lab
Start with the motorcycle labs. Turn the key, ride, break parts and fuses, then trace the fault through the electrical, ignition, charging, starting, and fuel systems. The readings and specs show their sources and confidence levels. Cars can join the library as new labs are built.
Choose a bike
Motorcycle labs
K100RS · 1985
US, 2-valve, LE-Jetronic
Sportster · 1975
Ironhead XLH, US, electric and kick start, points, DC generator
Sportster · 1981
Ironhead XLH, US, electric start, V-Fire II electronic ignition, DC generator
Sportster · 1985
Ironhead XLH 1000, US, V-Fire III with VOES, alternator
Electra Glide · 1972
FLH Electra Glide 1200 Shovelhead, US, alternator, points ignition, electric start
Electra Glide · 1977
FLH Electra Glide 1200 Shovelhead, US, 1976-on alternator, points ignition, electric start
Electra Glide · 1982
FLH-80 Electra Glide Shovelhead, US, electronic ignition, alternator, electric start
Super Glide · 1974
FXE Super Glide 1200 Shovelhead, US, electric start, points ignition, 1970-75 alternator
Super Glide · 1979
FXS Low Rider Shovelhead, US, breakerless ignition (mechanical advance), alternator, electric start
Super Glide · 1982
FXS-80 Low Rider Shovelhead, US, electronic ignition, alternator, electric start
Sportster · 1988
Evolution XLH 883, US, 4-speed, electronic ignition with VOES
Electra Glide · 1988
FLHTC Electra Glide Classic, Evolution 1340, US
Softail · 1987
FLSTC Heritage Softail Classic, Evolution 1340, US
Sportster · 1962
XLH 883 Ironhead, US, 6 V, kick start, generator, single points
Duo-Glide · 1961
FLH Duo-Glide 74 Panhead, US, 6 V, kick start, generator, dual points
Electra Glide · 1969
FLH Electra Glide 1200 Shovelhead, US, DC generator, points ignition, electric and kick start
FXR · 1988
FXRS Low Rider, Evolution 1340, US 49-state
WL / WLA · 1942
WLA 45 military solo, US Army, 6 V, kick start, 3-brush generator, blackout lighting, radio suppressed
Knucklehead · 1941
FL 74 OHV Knucklehead, US, standard (non-radio), 6 V, kick start, 3-brush generator and cut-out
Hydra-Glide · 1949
FL Hydra-Glide 74 Panhead, US, 6 V, kick start, 3-brush generator, single points
Hydra-Glide · 1956
FLH Hydra-Glide 74 Panhead, US, 6 V, kick start, 3-brush generator + cut-out, standard wiring
R90/6 · 1975
1975 /6, US, points ignition
GS550 · 1977
GS550B, US, points ignition
XS650 · 1978
Special (XS650SE), US, points ignition
R100RS · 1990
US, monolever, Hall-sensor ignition
XS650 · 1980
Standard (XS650G), US, TCI ignition
CB350 · 1972
CB350K4 Super Sport, US, points ignition
CB750 · 1972
CB750 Four K2 (SOHC), US, points ignition
CB550 · 1974
CB550 Four K0, US, points ignition
CX500 · 1978
Standard, US, CDI ignition
R75/5 · 1973
1973 /5, US, fused harness, points ignition
Z1 · 1973
900 Z1 (Super Four), US, points ignition
Le Mans · 1976
850 Le Mans I (Series I), points ignition
GN125 · 1998
GN125W, Germany E-22, side-stand interlock
CB650 · 1980
CB650 standard, US, transistorised ignition
GS650 · 1981
GS650E (EX), US, transistor ignition
XJ650 Maxim · 1980
XJ650G Maxim, US, TCI ignition
Virago XV535 · 1988
XV535 (2GV), US, fuel pump + pump relay
V7 Classic · 2008
750 small block, EU, Marelli IAW 15RC injection
SR400 · 2014
SR400 (2RD1), EU, fuel injected, kick start only
Ninja 250R · 1988
EX250-F2, US/Canada, IC igniter, liquid-cooled twin
GS850 · 1980
GS850GT, US, transistor ignition
Interceptor 650 · 2025
Euro 5+ Europe, EFI, ABS (Continental GT 650 shares the wiring)
CB450 · 1968
CB450K1, US, points ignition, front stop switch
CB400F · 1975
CB400F Four (Super Sport), US, points ignition
CB360 · 1974
CB360 (first year), US, points ignition
CB750F · 1976
CB750F1 Super Sport (SOHC), US, points ignition
CB450T Hawk · 1982
CB450T Hawk, US, CDI, electric start
KZ400 · 1974
KZ400D, US, points ignition, field-coil dynamo
KZ1000 · 1977
KZ1000-A1, US, points ignition
KZ650 · 1977
KZ650-B1, US, points ignition
Commando 850 · 1973
850 Mk1 Roadster, US, points ignition, positive earth
GS750 · 1977
GS750B, US, points ignition
T120 Bonneville · 1970
T120R, US, points ignition, positive earth
T140 Bonneville · 1973
T140V, US, points ignition, positive earth
RD350 · 1973
RD350 (360), US, points, kick start only
XS400 · 1977
XS400D, US, points ignition
SR500 · 1978
SR500E (2J2), US, CDI, kick start only
CB750 DOHC · 1980
CB750K standard, US, DOHC, transistorised ignition
Nighthawk 650 · 1983
CB650SC DOHC, US, transistorised ignition, shaft drive
KZ1000 · 1981
KZ1000-J1, US, IC igniter (electronic)
XJ550 Seca · 1981
XJ550RH Seca, US, TCI ignition
XS400 Seca · 1982
DOHC 12E (Europe), TCI ignition
K75C · 1986
US, cockpit fairing, LE-Jetronic
A65 Lightning · 1969
A65L, US, points ignition, positive earth
V50 · 1977
V50 first series (civilian), Bosch electronic ignition
KZ750 · 1980
KZ750-E1 four, US, IC igniter (electronic)
GS450 · 1980
GS450ET, US, manual 6-speed, transistor ignition
SV650 · 2002
SV650K2 naked, US, carburettor, digital transistor ignition
XS750 · 1977
XS750D, US, points ignition (partial data)
Bonneville · 2004
Hinckley Bonneville 790, US, carburettor, digital inductive ignition
Bonneville T100 · 2008
865 EFI, non-CANBUS (2008-2010), Sagem ECM
GN250 · 1982
Germany E-22, transistor ignition, partial
LS650 Savage / Boulevard S40 · 2007
Boulevard S40 (LS650K7), partial data
KZ550 · 1980
KZ550-A1, US, points ignition
W650 · 2000
EJ650-A2, US, bevel-drive twin, IC igniter, kick and electric start
GT1000 · 2007
SportClassic, US, Marelli IAW 5AM2 injection, immobiliser
Z900RS · 2018
ABS, US 49-state, Keihin EFI, KTRC
TU250X · 2018
TU250X (TU250XL8), US, fuel injected, partial
Street Twin · 2016
900 liquid-cooled, US, ride-by-wire, ABS, traction control, immobiliser
GT380 · 1977
GT380B, points (3 sets), kick start only
Motorcycle labs in progress
FL/FLH/FLH-80 Electra Glide (Shovelhead), first electronic ignition
1979 FLH-80 Electra Glide (Shovelhead) (US)
FX / FXE Super Glide, FXS Low Rider
1977 FXE Super Glide 1200 (Shovelhead) (US)
FLT/FLHT/FLTC Tour Glide (Shovelhead, rubber-mount 5-speed)
1983 FLT Tour Glide (Shovelhead) (US)
Planned motorcycle labs
Ironhead Sportster XLCH (and 1958-59 XLC) magneto, 6 V lighting
1958-1964
Ironhead Sportster XLCH magneto, 12 V lighting
1965-1969
Ironhead Sportster XLH 12 V, kick start
1965-1966
Ironhead Sportster XLCH battery/coil, kick only
1970-1979
FX Super Glide (kick-only)
1971-1973
FXWG Wide Glide, FXSB Low Rider, FXEF Fat Bob, (Evolution, 4-speed FX chassis)
1985-1986
FLHTC Ultra / FLTC Ultra Classic
1989-1990
FXWG Wide Glide
1980-1984
FL/FLH Electra Glide (1965 Panhead, 1966-67 Shovelhead)
1965-1967
M-50 / M-50S / M-65 / M-65S / MLS-65 Leggero / MC-65 Shortster
1965-1972
U / UL / ULH / US 74-80 flathead
1937-1948
B Hummer (125) with stoplight
1958-1959
FXR / FXRS (FXRT 1983) Super Glide II
1982-1983
W / WL / WLD / WLDR 45 flathead (civilian)
1937-1952
Ironhead XLCR 1000 Cafe Racer
1977-1978 (some sold as 1979)
Ironhead XR1000
1983-1984
Sprint 250 (Wisconsin, C, H) and Sprint SS/SX 350 (6 V)
1961-1972
Sprint SS-350 / SX-350 (12 V, electric start)
1973-1974
ML/MLS Rapido 125, MSR/SR-100 Baja, X-90 / Z-90, TX-125, SX-125
1968-1976 (approx; SX-125 end year unverified)
SS-175 / SX-175 / SS-250 / SX-250 (SST-250)
1974-1978
Model K / KK / KH / KHK
1952-1956
Topper scooter (AU, AH)
1960-1965
Single, battery/coil ignition (Models 0-4, 5, 5-B, 6, 6-B etc.)
1903-c.1915
Single, magneto ignition (5-A, 5-C, 6-A, 6-C ... to 1918 singles)
1909-1918
F-head twin, magneto (5-D 1909; 7-D ... 11-F, 15-F ... F, FD, FE, FH)
1909, 1911-1929
F-head twin, electric (11-J, 15-J ... J, JE, JS) - early generator system
1915-1925
F-head twin, electric (J, JD, JH, JDH)
1926-1929
Model W / WF Sport Twin (magneto)
1919-1923
Model WJ Sport Twin (electric)
1921-1923 (electric lights offered from 1920)
21 cu in single A (side-valve) / AA (OHV 'Peashooter'), magneto
1926-c.1930
Battery/generator singles: B, BA (21 cu in) and C, CB, CC (30.50 cu in)
1926-1934
D / DL / DLD 45 flathead
1929-1931
R / RL / RLD 45 flathead
1932-1936
Servi-Car G / GA / GD / GE (R-engine)
1932-1936
Servi-Car G / GA / GE (W-engine, kick start, 6 V)
1937-1963
Servi-Car GE, electric start, 12 V generator
1964
Servi-Car GE, electric start, 12 V
1965-1973
V / VL / VLD / VLH / VS 74-80 flathead
1930-1936
S-125 (Model 125)
1948-1952
ST / STU 165 (Model 165)
1953-1959
B Hummer (125)
1955-1957
BT/BTU Super-10, BTF Ranger, Pacer, Scat, Bobcat
1960-1966
XA military flat twin (shaft drive)
1942-1943