Early Z1 Carbs

[Garn 1]

The picture below is of a very early Carb off a Z1 (1972). Note; that unlike other 28 mm Mikuni carbs with the 17mm drain-plug, there is no rear vertical rib. I am trying to establish approximately what engine they ceased and went with the strethening rib.

It appears they were only on the Z1's for a short period. Wired George (WG) from this forum thinks they went to about Z1E-3000 odd. They are not easy to spot and I would think you would had to have an early Z to have seen them.

I am aware that they changed to the small screw type drain plugs at approx Z1E-032860 (Z1A)

Someone may have read a Kawasaki Service Bulletin or Edit on this subject. Perhaps GBH could tune in!

RegardZ.

[kawamick]

There is one here on German ebay: http://cgi.ebay.de/KAWASAKI-Z1-VERGASER-CARBURATOR-1972-MIKUNI-VM-28-SC-Z1_W0QQitemZ230232032558QQihZ013QQcategoryZ32102QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Mick

[Garn 1]

Kawamick, thanks for your reply, that German site was interesting. I'll probably end up putting a bid on some of his other items. It appears as so I'm "flogging a dead horse" to find the finish date of these rare carb's. Although I must admit, I had a set installed on a later Z1 and never noticed, before a friend asked me "when did they modify them to have the rib in question".

RegardZ.

[Davy Doherty]

Garn according to Jeff's reference info they were fitted up to the 3000 range. Are you trying to pinpoint to within a few hundred or closer?

[Garn 1]

Davy, whereas it would be nice to have a definitive answer, with reference to some edit/ bulletin from Kawasaki, for this utter Z-nut. I guess I will have to settle for the answer that those non-ribbed carbs finished in the 3000 range (or up to the 3000 range). Meaning, these carbs could be on an engine Z1E -03999? Which is probably good enough! but will not satisfy me if I have engine number Z1E-4200 built 12/72.

Talking of definitive answers, it has been already established that;
Vacuum nipples in head (Finished Z1E- 02179)
One piece head gasket. (Finished Z1E- 14319)
Watch for my next question on Hollow cam-shafts!

RegardZ ~ Garn

[Garn 1]

Just received a personal message that Z1E-230x has the non-rib Mikuni carb. Anyone in the Z1E 3000's?
RegardZ.

[RB]

Talking of definitive answers, it has been already established that;
Vacuum nipples in head (Finished Z1E- 02179)

That's not quite correct? Glued, taper fit tubes were up to Z1E~01000 Then to Z1E~02173 it was the threaded tube fitting and from Z1E~02174 it was the tubed manifolds B ut Hey, what's five engines between friends