DATE CODES

[Steve Swan]

I'm starting to think the numbers are month day codes given the sequence emerging.
I still have no clue about the alpha stampings

ok, month then date codes.....  so MIGHT mean the disc on 232 was inspected and passed off on February 4 ?  BEFORE 33 or March 3rd on your disc ?

we need to hear from Mark and Bo !

[Steve Swan]

ignore me.  i'm tired and growing senile. "42" is April 2.  it's 12:15 am now.  i'm signing off before i blather any more.  g'nite !

[Sgt.Pinback]

Uli, Those are great photos contributions to this thread. One can presume that your bike has a collection of May 1969 dated parts. Anyone else have good records like these.

Yes, upper case is 5 21 and lower case is 5 - 22.

I will take better photos when engine is back ftom welding.

[Sgt.Pinback]

I can't remember who makes the Z1 shock I'll try and do some research
...

That would be great.
On Z1 shocks, there are "ordinary" dates. So I assume they did not come from showa.

Sorry again for OT.


With courtesy of Achim from the Kawasaki-Z- Classiker.Forum.de

[Sgt.Pinback]

Sandcast # 1983

rear hub: 6  5

is it May, 6 or June, 5 ?

[Erling]

Probably should not ad here as I do not know about pictures!
But frame 1676 do have rear dampers stamped 4H though right half of "H" is missing , on both.
Easy to find as it has had Konis on for the past 45 years.
The samurai sword looks look more like a tilted 4 in the shape of this one as the cross beam looks moved to the left!
Upper crank case says 5-19 lower 5-20. On E vin 1638.
Oiltank 5 2 3
Petrol 4.6 2
Rear hub is in the Seeley frame can't see for now.
Erling.

[Erling]

P.S. Forgot about the disc brake:13 or T3 as the top might be hidden by the thing between the two nuts!

[4pots1969]

I thought Chris Noel found frame date codes

i cannot remember.  seems someone mentioned frame date codes at some point in time.  i cannot remember.

This is a recovered frame for organ bank but the number has been removed by the previous owner ...The guy who sold me assured me that the engine had broken in the housing chain sprocket was Sandcast ...
So do not know the number, it's just to make you see the symbol.
Here is the picture of the symbol which is a little strange ...

[markb]

we need to hear from Mark and Bo !

I been watching this thread with great interest. The bikes have been a low priority lately. I hope to get back into it in a month. And #97 is still out in California. After that I will see what I can add to the discussion. It looks like it could last a while.

[4pots1969]

we really need someone who can interpret Japanese characters !

I found this table KATAKANA, is apparently the letter or symbol means nu
They are generally used to transcribe in the Japanese language of foreign words, particularly English words...

[Steve Swan]

Sandcast # 1983

rear hub: 6  5

is it May, 6 or June, 5 ?

i'm awake again and in the land of the living.  you guys "across the pond" have been doing some work !!!!  

KP believes month, followed by day.  so one would think June 5 on your hub.  disc on 2157 also June 5.  disc on 232 April 2.  the "24" on my cam cover would be February 2.  i don't think it's unreasonable to suggest the factory was manufacturing parts for production bikes before March 15, when vin#1 was finished.    finding a 2 digit date on a part would tell us where the date is stamped, in relation to the month.

Gerard, fantastic, you found a list of symbols !!!!  interesting on the character "nu."  i tried putting it in the bing translator and nothing.  English meaning = "nu."  found this in Wikipedia Nu (kana), the Japanese characters ぬ and ヌ  

HA !!!!  i found this weblink !  http://repository.upenn.edu/dissertations/AAI8406701/   " {Nu} is associated with change or process, in the absence of the speaker's emotion, and seems to indicate perfect of result. "

Uli, does your tank have a stamp on it ?  So far, your crankcases have the earliest date followed by your frame parts.

Gerard, interesting character on the frame steering head.

[Steve Swan]

we need to hear from Mark and Bo !

I been watching this thread with great interest. The bikes have been a low priority lately. I hope to get back into it in a month. And #97 is still out in California. After that I will see what I can add to the discussion. It looks like it could last a while.

Mark, when does 97 come back home ?  (on another note, the Supersport runs like a Swiss watch.  could not save that gorgeous tank, i got 30/31 pin holes sealed.......  there's always one  )

[Sgt.Pinback]

Uli, does your tank have a stamp on it ?  

So far, your crankcases have the earliest date followed by your frame parts.

- I´m afraid the fuel tank is not the one the bike had when new. I will have a look when it comes back from Meno

- No, oil tank and brake rotor have earlier dates.

[Sgt.Pinback]

Probably should not ad here as I do not know about pictures!
But frame 1676 do have rear dampers stamped 4H though right half of "H" is missing , on both.
Easy to find as it has had Konis on for the past 45 years.
The samurai sword looks look more like a tilted 4 in the shape of this one as the cross beam looks moved to the left!
Upper crank case says 5-19 lower 5-20. On E vin 1638.
Oiltank 5 2 3
Petrol 4.6 2
Rear hub is in the Seeley frame can't see for now.
Erling.

Interesting!

So we have two sc near below # 2.000 with crancases made within 3 days 8n May and both have "4H" shocks when we would expect "4E" if that stands for a date.
I cant believe they waited 2-3 month for the shocks.

And this is what I found on my otjer pair. They come from an early 9.000 range diecast.
Seems to be "4N".

But there is no "N" month.

[Sgt.Pinback]

Uli, does your tank have a stamp on it ?  So far, your crankcases have the earliest date followed by your frame parts.

Fuel tank says: 4 B 20

If "4" stands for 1969, that would be very early.