1971 Commando SS headlight wiring

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I think perhaps you might have already told us that one (about Bob Trigg and the electric carving knife?) unless it's another story which we'd be glad to hear or any others you can think of. :)
That's it, and also, Mike Jackson assisted in the shaping of the AJS Stormer MX tank being designed the same way.

It's easy to take the "Sport tank" for granted but it was the heart of the first two "alternative" models to the Original Commando ("Fastback", later) and it carried on with great success from those early days when it was introduced at Plumstead Road all the way to The End of Commando production. It was a stroke of genius.
 
The BSA and Triumph factories were well capable of working to model years well before Commando production started, it matched the selling seasons of where 80% of their production was sold and suited their annual shutdown timing in Aug. It seems to be a unique feature of the Norton Commando to move away from selling seasons and make changes non aligned to their major market. So you have Marks instead of model years and a greater number of running changes within the Marks to confuse even more.
We never had "mark" numbers for 750s at the Norton factory. We knew that there were production series differences - and thus major series breaks for parts supply purposes - but we never called them that. I have been told by people who worked at Plumstead that the "new production beginning at early spring so that motorcycles didn't sit in warehouses for months" was the traditional practice for AMC, and people have stated that they thought that it was Berliner's preference, too -- Berliner felt that no dealer would accept a motorcycle (at least, one that wasn't pre-sold) after Sept. 1 and they had no interest in having capital tied up in warehoused motorcycles over the winter. Once the factory-owned distributing company, Norton Villiers Corporation, was set up in California, there was more feeling that the traditional US season designation should be followed but it didn't ever seem practical (e.g. by the time that it was recognized that a detuned 850 was thought to be useful in getting over the Combat reputation for engine troubles, the earliest possible production intro date was mid-March, 1973. To have waited until Sep. '73 and introduced the change as a '74 Model Year would have lost about a years' sales).

Of course, that's old news being almost 50 years ago. All motor vehicles now must have air pollution approval certificates and they're tied to both Model Year definition and specification declaration so it would be impossible for any vehicle company to NOT adhere to Model Years.

The running changes were an issue -- it's always better and cheaper to do something right in the first place, but ....

I'm not saying that the system used by AMC and NV was a good one and it was not well aligned with the US/Canada registration practices, but it's futile to try to make the two systems line up.
 
We never had "mark" numbers for 750s at the Norton factory.

However, there's evidence that mark numbers were used for at least some 750s as the dispatch record below, shows.

1971 Commando SS headlight wiring
 
However, there's evidence that mark numbers were used for at least some 750s as the dispatch record below, shows.

1971 Commando SS headlight wiring
Thank you -- that's VERY interesting, for several reasons!
1) I note that there are "F/B"s, "F/B LR"s, and "FB Mk4"s listed - as I've said, I never saw/heard any mention or record showing any "Mk #" of Commando production in the two years I worked there.
2) These are from very early in the 1972 production run and there is not a single Roadster or Interstate listed on the entire page.
3) This is in the serial number range which is generally recorded as being "new cases/roller bearings/new breather spec" -- i.e. the "1972 Production build spec -- but prior to the introduction of the Combat engine. At this time, the Combat engine and front disc brake are listed as "option" - I wonder if the designation of "F/B Mk4" in the midst of others is an indication that that particular vehicle has a disc brake -- or, even, in the face of "conventional wisdom", is spec-ed to be a Fastback with a front disc AND Combat engine. And as a pure damned outlier, 200237 is notated as "F/B disc"!
4) It is noted that Fastback LRs were rare after the 1972 build year started and here is one listed (NEVER say "never" in regards to Commando production).
5) All of these dispatches are to UK dealers (if you count one to Jersey as being UK), which may be in line with the belief that Berliner (and perhaps NVC in California) only were supplied with the Combat/disc spec in 1972.
6) Mixed in are two motorcycles that are listed as being dispatched in the week before Christmas, 1971 ( :0 - even though the new engine spec is generally considered to have commenced assembly line production at the first working day after New Years Day in 1972). Which opens the entire can of worms regarding "pre-production" motorcycles.
7) One motorcycle is listed as "Hi-Rider" as being dispatched to a dealer in Cambridge -- which is quite disappointing personally, I thought that y'all had better taste! (Although, it must be noted that during times when distributors' stocks were low in the US, there were dealers who would accept a Hi-Rider and immediately whip all the Hi-Rider components off and convert it to - usually - a Roadster but occasionally another model. Occasionally, you'd see a particular motorcycle with a Hi-Rider tank, low bars, Roadster seat but generally the tank would be switched, too. The most common sign of a motorcycle being modified in this way was the presence of an extra-length throttle and clutch cable wadded up under the tank as it was considered financially-advantageous to do so, versus the shop labor time to disassemble the banding of the combined wiring harness and cable structure under the tank and remove the longer cables and then repackage all the rat's nest under the tank versus just running new cables. So, it's not guaranteed that that motorcycle actually hit the street as a Hi-Rider.)
8) WITF are there so many blank spaces on what is supposed to be a sequential series of E/F numbers???? I suppose that we'll never know.

Thank you for posting this -- it's very interesting! Do subsequent pages show as many blanks?
 
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2) These are from very early in the 1972 production run and there is not a single Roadster or Interstate listed on the entire page.

It does seem that the first production run of the 200000 series were mainly Fastbacks. The production* Combats apparently started from 200976 and the first Combats are supposed to have been Roadsters and the new Interstate:

"New Factory Options
Combat engine
New exciting higher power engine option now available for the Roadster and Interstate...
.
Disc Brake
Norton-Lockheed hydraulic front disc brake option now available for the Roadster and Interstate..."


*(The Combat engine is supposed to have been available as an option prior to this.)

6) Mixed in are two motorcycles that are listed as being dispatched in the week before Christmas, 1971 ( :0 - even though the new engine spec is generally considered to have commenced assembly line production at the first working day after New Years Day in 1972). Which opens the entire can of worms regarding "pre-production" motorcycles.


Although New Year's Day 1972 fell on a Saturday (therefore would have carried over to the Monday had it been a bank holiday) it was not yet an official bank holiday in England at that time (although it was in Scotland).

"1974 - New Year's Day became an additional bank holiday in England, Wales and Northern Ireland, and Boxing Day became an additional bank holiday in Scotland."

The first week of January 1972 was the official release date...
1971 Commando SS headlight wiring



...therefore logical that '2xxxxx' series machines would have been in production in readiness for the new model launch (although from the records it seems that '15xxxx' were still being dispatched in late '71) as '2' series machines including Combats with late '71 date stamps are known to exist.

7) One motorcycle is listed as "Hi-Rider" as being dispatched to a dealer in Cambridge -- which is quite disappointing personally, I thought that y'all had better taste!

The personal export scheme was popular with US servicemen, etc., with many in the Cambridge area (at Lakenheath, Mildenhall, etc. ) so I'm going to say that was a personal export Hi-Rider! :)

8) WITF are there so many blank spaces on what is supposed to be a sequential series of E/F numbers???? I suppose that we'll never know.

Thank you for posting this -- it's very interesting! Do subsequent pages show as many blanks?

I only have copies of two pages, the one above, and an earlier '151xxx' page both of which were posted here by member illf8ed who I believe has a few more pages.
It would appear that by this time not every serial number was used or simply not recorded for whatever reason.

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1971 Commando SS headlight wiring
1971 Commando SS headlight wiring
 
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