Identify Your Bike
Engine Ranges
Please Quote Your Model, Year, Engine Number & Chassis Number On ALL Orders Placed With Us. Please Also Tell Us About Any Modifications That Have Been Made To Your Bike That Could Affect Spares Suitability.
UK
Residents With Historic Vehicles Need To Read This
In the UK, there is now a 40 year
rolling exemption for vehicle excise duty (bike tax) on classic vehicles.
If your bike is 40 years old or older then the bike should be tax exempt.
YOU
MUST STILL TAX THE VEHICLE OR DECLARE IT AS OFF-ROAD USING A "SORN"
DECLARATION FORM.
Failure to do either will result in a fine. Legislation that came
into force on January 1st 2004, stated that any vehicle not Taxed or SORNed, will
lose it's right to it's "Original Registration" mark. How would
your bike look with a ghastly yellow and black "Q" plate. You
have been warned.........
From 1946 to 1974 Norton machines had matching engine and frame numbers. Commando's after engine number 307311 have frame numbers that start from F100000.
Code No | Model Of Bike |
2 | 16H |
3 | 18 |
3T | 500T |
4 | ES2 |
6 | 19R |
7 | Big 4 |
8 | 16H Or Big 4 Plunger |
9 | 19S |
10 | International 40 |
10M | Manx 40 |
10M2 | Manx 40 Featherbed |
11 | International 30 |
11M | Manx 30 |
11M2 | Manx 30 Featherbed |
12 | Model 7 Dominator 500cc |
122 | Model 88 Dominator 500cc |
13 | Model 50 |
14 | Model 99 Dominator 600cc |
15 | Model 77 Dominator & Nomad 600cc |
16 | Nomad 600cc |
17 | Jubilee 250cc |
18 | All 650cc Twin |
19 | Navigator 350cc |
20 | Atlas 750cc |
20M3 | Commando Early 750cc |
20M3S | Commando Points On Timing Cover 750cc |
From 1946 to 1960 the year letter the best way of determining the age of a machine because there is an overlap of dates and numbers in the factory records.
Letter Code | Year | Engine Number |
1945 | 1001 | |
A | 1946 | 2131 |
B | 1947 | 7756 |
C | 1948 | 13792 |
D | 1949 | 20701 |
E | 1950 | 27100 |
F | 1951 | 35560 |
G | 1952 | 42700 |
H | 1953 | 48900 |
J | 1954 | 55350 |
K | 1955 | 60700 |
L | 1956 | 66600 |
M | 1957 | 71360 |
N | 1958 | 77400 |
P | 1959 | 80488 |
R | 1960 | 87038 |
1961 | 94500 | |
1962 | 101060 | |
1963 | 105000 | |
1964 | 108000 | |
1965 | 111650 | |
1966 | 115870 | |
1967 | 119760 | |
1968 | 124300 | |
1969 | 130000 | |
1970 | 134700 | |
1971 | 141700 | |
1972 | 200001 | |
1973 | 212278 & 300000 | |
1974 | 307311 | |
1975 | 325000 |
The information given below is the best guide we can give and was compiled with the aid of original factory records. This information is still only offered as a guide, please contact the VMCC (address given at bottom of page) for more in depth information regarding YOUR machine.
Model | Date | Number | Comments |
Jubilee | Nov 1958 | 79866 | First machine |
Aug 1959 | 84525 | ||
Sept 1960 | 92485 | ||
Nov 1960 | 93773 | ||
Sept 1961 | 99598 | ||
Sept 1962 | 103446 | ||
106838 | New gearbox | ||
Sept 1963 | 107988 | ||
Sept 1964 | 111026 | ||
July 1966 | 117825 | Last machine | |
Navigator | Nov 1960 | 94573 | First machine |
Sept 1961 | 99110 | ||
Sept 1961 | 99172 | ||
Sept 1962 | 103275 | ||
106838 | New gearbox | ||
Sept 1964 | 106980 | ||
Aug 1965 | 114519 | Last machine | |
Electra | July 1963 | 650 | First machine |
Sept 1964 | 6201 | ||
Aug 1965 | 7961 | Last machine | |
500cc | Oct 1960 | 93235 | Standard |
Oct 1960 | 93385 | ||
Mar 1961 | 96539 | First 88SS | |
Aug 1962 | 97227 | Last Deluxe | |
Sept 1962 | 101918 | Standard | |
Sept 1962 | 102911 | 88SS | |
Sept 1963 | Last Standard | ||
Sept 1964 | 109512 | 88SS | |
Oct 1965 | 114870 | ||
Feb 1966 | 116372 | ||
July 1966 |
118151 |
Last 88SS | |
600cc | Aug 1960 | 92270 | Standard |
Sept 1960 | 92460 | ||
Mar 1961 | 96496 | First 99SS | |
Aug 1962 | 103392 | Last 99SS | |
Aug 1962 | 103801 | Last Deluxe | |
Aug 1962 | 103929 | Last Standard | |
650cc | Nov 1960 | 93601 | First Machine |
Aug 1962 | 104121 | Last Deluxe | |
Sept 1962 | 104123 | 650SS | |
Sept 1962 | 104267 | 650 Standard | |
Sept 1963 | Last Standard | ||
Sept 1964 | 110375 | 650SS | |
Oct 1965 | 111920 | New Strengthened Con-Rods Fitted | |
Oct 1965 | 114870 | Cylinder Barrel Spigot Removed | |
1966 | 115871 | ||
Feb 1966 | 116372 | 6-Start Oiling System | |
1967 | 119760 | ||
July 1967 | 123164 | ||
Feb 1968 | 126124 | ||
Sept 1968 | 129147 | First Mercury | |
Feb 1970 | 129894 | Last Mercury | |
Atlas | Feb 1964 | 108000 | First UK Atlas |
Sept 1964 | 111377 | ||
Oct 1965 | 111920 | New Strengthened Con-Rods Fitted | |
Oct 1965 | 114870 | Cylinder Barrel Spigot Removed | |
1966 | 115871 | ||
Feb 1966 | 116372 | 6-Start Oiling System | |
1967 | 119760 | ||
1967 | 120323 | ||
Feb 1967 | 121007 | Concentric Carbs Introduced | |
March 1967 | 121307 | Coil Ignition Introduced | |
May 1967 | 121665 | P11 | |
Aug 1967 | 123364 | ||
Jan 1968 | 124372 | P11A | |
Sept 1968 | 128646 | P11A Ranger | |
Nov 1968 | 129145 | Last Ranger |
Then Onto Commando...........
Engine Number | Year | Mark | CC | Model | Comments |
126125 | I | 750 | Fastback | First Commando (Atlas MKIII). Engine prefix 20M3. External rev counter drive. Points in old magneto position. | |
131257 | 1970 | II | 750 | Fastback S-Type Roadster | Engine prefix 20M3S. Points in timing cover. Integral rev counter drive. Wipac handlebar switch. |
141783 | 1971 | III | 750 | Fastback Roadster SS HiRider Fastback Long Range (Steel Tank) | New style fork yokes, non-adjustable type. 4:10 front tyre. Lucas handlebar switches. Centre stand moved from frame to gearbox cradle. |
145183 | 1971 | 750 | Production Racer | Last production racer produced in June 1971 | |
200000 | 1972 | IV | 750 | Fastback Roadster HiRider Interstate | Breather moved to between gearbox plates behind engine - was on the left hand side of the camshaft. Engine number prefix discontinued. Optional disk brake and combat engine. Revised shape handlebar levers. |
220000 | 1973 | V | 750 | Roadster HiRider Interstate | Black instrument cases. Square rear light (actually fitted from 212278). Disk brake on all but Hi-Rider. |
300000 | 1973 | I | 850 | HiRider Interstate | 850 motor with silver barrel. Balanced exhaust system. All Disc braked. |
306591 | 1973 | IA | 850 | Roadster Interstate | 850 motor with silver barrel. Homologated model for Europe with large black box air box and peripheral discharge silencers. |
307311 | II IIA | 850 | Roadster HiRider Interstate | 850 motor with black barrel. Roadster & Interstate available as homologated model. Called MKIIA for Europe. For USA with old type silencers and air filter. | |
325001 | 1975 | III | 850 | Roadster HiRider Interstate | 850 motor with black barrel. Left hand gear change. Right hand rear brake. Front disc moved to left hand side. Electric start. |
Still Want More Info?
The VMCC (Vintage Motorcycle Club), now has custody of all of the original motorcycle factory records which contains the surviving records of a very large part of the British motorcycle industry. They can assist you with just about any historic British bike query, whether you are buying, repairing, restoring, researching or registering. They can even advise on the procedure for gaining an age related plate. The service is open to VMCC members and non-members alike though joining as a member has many benefits and discounts. Give them a try, email library@vmcc.net or visit their website at www.vmcc.net
How To Tell If You Have A Combat Engine
The first combat engine number was 200976 (1972), not all 750 engines after this number are combat. The 750 combat engine has a C at the top front of the cylinder head and it was originally fitted with 32mm carbs. Also, the gap between the head and the barrel is narrower than the gap between the other fins. The camshaft on a combat is stamped with SS, this is called a 2S camshaft and not actually an SS camshaft (the SS camshaft is actually stamped X1 or X2 - this is a point of much confusion). Once a combat engine has Superblend main bearings (064118) fitted and a the modified breather, which is a big engineering job to do properly, (we do this), then the combat engines are bullet proof.
Legal Tax Evasion
Cars & Bike produced before 01/01/1973 are exempt from vehicle excise duty (road tax) when used on British roads.
Page Last Updated 09/12/19