There are two tables listed here. The first is 'Frame ID Numbers - 1981 and Later.' This information was originally posted (13 Mar 1996) by Dan Kloch

• The engine serial number is made up of several components. For example, a full engine serial number could be PJ56P. The engine serial number is the complete number shown. This is made up of. The list number or build list, typically 2 to 4 letters followed by 4 or 5 numbers; a letter identifying the country; a series of numbers showing.
• Unlike a VIN that is placed in several locations around a bike, an engine number will be stamped or engraved in one spot on the engine block. Some make and models will vary, but generally, a motorcycle engine number can be found on or directly above the crankcase, and is made up of around nine characters.

The engine number is located on the left side of the engine, immediately below the cylinder barrel flange. The number is stamped onto a raised pad. The frame number is located for BSA's 1969 and earlier on the left side of the frame, on the front engine mounting lug. Frame ID Numbers - 1970-1980. Motorcycle Serial Numbers. Vehicle Identification Number (V.I.N.) is located on the engine crankcase and is the same as the number located on frame steering head. Example: 1A 13478 H7.

(kloch@nrcdec.nrc.state.ne.us)

and was then updated (13 Nov 1996) by Cheezie to include 1993-96 bikes. The second table is 'Motorcycle ID Numbers 1970-1980.' And was added by Dan on 22 Nov 1996. Thanks to those busy guys!

Frame ID Numbers - 1981 and Later

Example: 1HD1AAK11BYO13478
The frame number is broken
down like this:
1 HD 1 AA K 1 1 B Y 013278
1 = Made in U.S.A.
HD = Harley Davidson
1 = Weight Class
1 = Heavyweight
4 = Lightweight
8 = Sidecar
AA = Model Designation
K = Engine Displacement
K = 1340 Shovelhead
H = 1000 Ironhead XL
L = 1340 Evolution
M = 883 Evolution XL
N = 1100 Evolution XL
P = 1200 Evolution XL
1 = Introdution Date
1 = Regular Introdution
2 = Mid-Year (January)
3 = California Special
4 = Daytona (March)
1 = Check Digit
B = Model Year
B = 1981 C = 1982
D = 1983 E = 1984
F = 1985 G = 1986
H = 1987 J = 1988
K = 1989 L = 1990
M = 1991 N = 1992
P = 1993 R = 1994
S = 1995 T = 1996
U = 1997
Y = Plant of Manufacture (York, PA)
T = Plant of Manufacture (Tomahawk, WI)
J = Plant of Manufacture (Milwaukee, WI)
013278 = Sequential Number
FL/FX Models
AA FLH - 80
AB FLHP - 80 Chain
AC FLH - 80 Shrine Chain
AD FLH - Classic
AG FLH - Classic w/ sidecar
AH FLHP - 80 Belt Deluxe
AJ FLH - 80 Heritage
AK FLHS - 80
AL FLH - 80 Shrine Belt
BA FXE - 80
BB FXEF - 80
BC FXS - 80
BD FXB - 80
BE FXWG - 80
BF FXSB - 80
BG FXDG
BH FXST
BJ FLST/FLSTC
BK FXSTC
BL FXSTS
BM FLSTF
BN FLSTN
BP FXSTSB
FLT/FXR Police Models
DA FLHTP - Windshield 1984 and later
DF FLHTP - Fairing
ED FXRP - Windshield
EF FXRP - Fairing
EK FXRP - C.H.P.

FLT/FXR Models
AE 1981 FLT
AF 1981 FLTC
DA FLT 1982 and 1983 only
DB FLTC
DC FLHT
DD FLHTC
DE FLHTC w/ Sidecar
DG FLHTC Shrine
DH FLTC w/Sidecar
DJ FLHTC 1986 - present
DK FLTC Shrine
DM FLTCU - Ultra
DN FLTCU - Ultra w/Sidecar
DP FLHTCU - Ultra
DR FLHTCU - Ultra w/Sidecar
DS FLTCU - Ultra Shrine
DT FLHTCU - Ultra Shrine
EA FXR
EB FXRS
EC FXRT
EE FXRDG
EG FXRS-SP Sport Edition
EH FXRD
EJ FXRC
EL FXLR
EM FXRS - CON
FA FLHS
FB FLHR-I Injected
FC FLHTCU-I Injected
FD FLHR
FE FLTCU-I Injected
FF FLHTC-I Injected

Starting from the 1980s the motorcycles for the U.S. market received unique 17-characters VIN codes. Letters and numbers were used. The code is used to identify the bike and the manufacturer. The VIN decoder motorcycle is used to find out what each of the characters means and stands for. You can find the code on the frame of the vehicle, but the exact location can be different depending on the make and the model of the motorcycle you're interested in.

The first three characters identify the location of the assembly and the name of the company. The next figures and letters determine the trim, the type of the engine and fuel, the model and the make.

Manufacturers are allowed to use various combinations of symbols in the part of the code that is called VDS. This part is called descriptive. However, the ninth position of the code is devoted to the check digit that can inform the motorcycle VIN decoder about the validity of the code and whether it was somehow changed or not. The next characters define the plant and the serial number of the engine. The serial number can be also stamped on the case of the engine. You can find it on your own or ask the owner for assistance.

Motorcycle Engine Serial Number Decoder

The VIN code cannot have O, Z and I letters as they can be easily confused with the numbers such as 0, 2 and 1 respectively. Every insurance company requires the VIN code of the motorcycle and uses the motorcycles VIN decoder to quickly find out the details about the engine and the components. You will use this data for searching for the parts for any kinds of repairs. Using original parts is a safe and secure way to prolong the life of the bike.

Free motorcycle VIN decoder

There are a few things that can make the bike riding less fun. If you've decided to choose the motorcycle VIN decoder to decipher the 17-digit sign, you can see that the year in the information sheet differs from the year in the registration card of the bike.

If you use a free motorcycle VIN decoder, don't forget to compare the data on the screen with the actual state of the bike. The VIN number of the motorcycle can be located in two places, and each letter and figure of them should be the same.

Suzuki Motorcycle Engine Serial Number Lookup

The VIN number decoder motorcycle provides results of the deciphering in a few seconds. If you decide to do this on your own, you will spend much more time. Sometimes it may take up to several days.

As mentioned above, each of the symbols represents a piece of information about the bike. If you see ZZZ inside of the code, it means that the motorcycle was produced not for the USA but for another country.

Decode your motorcycle within seconds!

Now, when you know a lot about decoding and people use it you may want to try it and benefit from it. Feel free to test our free decoder for motorcycle that is very easy-to-use. To do this, you should take the following steps:

• Enter motorcycle VIN code into a special decoder that you can find at the top of this page
• Hit the Decode Now button
• Get the detailed on the motorcycle you want. Wait a few seconds. Voila, a free motorcycle VIN report will be displayed to you.
• Check your motorcycle report on your mobile, laptop or PC.

Honda Motorcycle Engine Serial Number Lookup

You are welcome to try this motorcycle decoder. It's free of charge. Even a child can use it. Why don't you give it a try now? You'll definitely like it!