Author Topic: carb query z250  (Read 268 times)

spooky

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carb query z250
« on: December 09, 2020, 09:57:03 PM »
My recently acquired Kawasaki z250 ltd has a slide carb fitted and is more or less ok, a bit off on idle. Looking at pictures of other z250`s it appears that they were more often (always ? ) fitted with a cv carb... puzzled, I am beginning to think it has a z200 carb on, can anyone confirm this ?
Classic efi squadron blue, Kawasaki ltd250,  Terrot 125 and a Vespa !

themoudie

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Re: carb query z250
« Reply #1 on: December 09, 2020, 10:54:41 PM »
No idea Rufus. Find an Amal MKI Concentric and then you can twiddle away!  ;)

Pleased the liaison was succesful!

Good health, Bill

SteveC#222

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Re: carb query z250
« Reply #2 on: December 10, 2020, 09:41:57 AM »
From what I can find, the Z250 Ltd had a CV while the Z200 had a 26mm Keihin slide carb.

https://www.motorcyclespecs.co.za/model/kawasaki/kawasaki_z200%2076.htm

http://www.z250.co.uk/z250ltd%20brochure%20back%20copy-1.jpg
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Moto63

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Re: carb query z250
« Reply #3 on: December 10, 2020, 05:24:49 PM »
Evening mr Spooky.... I’m pretty sure Martin (xbally) either has or used to have a Z200. Maybe he can shed some light on the issue for you. Sorry but I can’t help.
Cheers, Michael

xbally

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Re: carb query z250
« Reply #4 on: December 10, 2020, 05:51:34 PM »
Evening mr Spooky.... I’m pretty sure Martin (xbally) either has or used to have a Z200. Maybe he can shed some light on the issue for you. Sorry but I can’t help.
Cheers, Michael Yes indeed I did...but...it was only ever a parts project-wish I had kept it now...but no engine or carb I'm afraid-just a basic rolling chassis. I seem to recall there is a Haynes manual that might give some clues about the carb...
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spooky

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Re: carb query z250
« Reply #5 on: December 10, 2020, 07:37:22 PM »
Thanks everyone, I think it must have a z200 carb, but it runs fine, I would still like to know which screw is which, see photo, Philip is pointing at one, if photo has shown up,  I haven't got a manual yet but carb looks similar to xl185. I think the one at front is pilot screw and the one at intake side is  throttle stop screw, but don't know what that does anyway !
Classic efi squadron blue, Kawasaki ltd250,  Terrot 125 and a Vespa !

themoudie

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Re: carb query z250
« Reply #6 on: December 10, 2020, 10:37:08 PM »
Aye Rufus,

The screw being pointed at with the Philips screwdriver is the 'Air screw' and the other is the throttle slide screw. From the description, I suspect that the 'Air screw' adjusts the amount of air being admitted to the primary jets fuel flow. So slackening the screw allows more air and weakens the mixture, whilst tightening the screw towards it's seat will reduce the air admitted and richen the mixture, Same as an Amal MKI Concentric and opposite to a Dellorto.

I also attach a link to an exploded diagram and parts list for the 1978 Kawasaki Z200 carburettor. 1978/kz200-a1/carburetor_diagram-parts_list

I suspect that if you don't want to spend a lot of money, but need to renew the carb, you might be as well having a word with johnr about his use of Chinese pattern carbs and from whom he purchased his.

Regards, Bill

johnr

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Re: carb query z250
« Reply #7 on: December 14, 2020, 02:19:47 AM »
does it hanve a choke lever made of metal rod? i might actually have one if you need it? i got a load of parts and included were a number of carbs including one from allegedly a z200.....

spooky

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Re: carb query z250
« Reply #8 on: December 14, 2020, 10:09:59 AM »
Yes, choke lever is a metal rod  ,  at present it works ok apart from a slight fluff at tickover, which I may have sorted, not sure until i get it good and warm, I am more puzzled as to which carb it should have <  anyone got a manual for a z250 single...
Classic efi squadron blue, Kawasaki ltd250,  Terrot 125 and a Vespa !

spooky

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Re: carb query z250
« Reply #9 on: December 24, 2020, 02:31:39 PM »
does it hanve a choke lever made of metal rod? i might actually have one if you need it? i got a load of parts and included were a number of carbs including one from allegedly a z200.....

tried to send pm`s but not sure they are getting to you...
Classic efi squadron blue, Kawasaki ltd250,  Terrot 125 and a Vespa !

johnr

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Re: carb query z250
« Reply #10 on: December 26, 2020, 05:49:31 PM »
aye, i just got the pm. when i go down the shed i will have a dig round for it. im sure its in the big box of bsa bits in the corner (dont ask).....

spooky

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Re: carb query z250
« Reply #11 on: January 06, 2021, 11:26:56 AM »
Is it a long walk to your shed ?   8)
Classic efi squadron blue, Kawasaki ltd250,  Terrot 125 and a Vespa !

johnr

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Re: carb query z250
« Reply #12 on: January 07, 2021, 12:49:27 AM »
sorry mate, weve both come down with covid following an inconsiderate arsehole member of the family coming for xmas lunch but not mentioning that he already had it...... currently struggling to stay conscious most of the time.

spooky

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Re: carb query z250
« Reply #13 on: January 07, 2021, 10:37:17 AM »
Oh, sorry to hear that, get well asap,  no rush at all for the carb hunt,  take care R
Classic efi squadron blue, Kawasaki ltd250,  Terrot 125 and a Vespa !

mthee

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Re: carb query z250
« Reply #14 on: January 07, 2021, 11:53:23 AM »
Bloody hell! Get well soon, johnr.