Thumper Club Forum
Technical => Bike Problems/Questions => Topic started by: spooky on December 09, 2020, 09:57:03 PM
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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 ?
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No idea Rufus. Find an Amal MKI Concentric and then you can twiddle away! ;)
Pleased the liaison was succesful!
Good health, Bill
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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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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
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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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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 !
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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 (https://www.partzilla.com/catalog/kawasaki/motorcycle/1978/kz200-a1/carburetor)
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
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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.....
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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...
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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...
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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).....
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Is it a long walk to your shed ? 8)
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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.
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Oh, sorry to hear that, get well asap, no rush at all for the carb hunt, take care R
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Bloody hell! Get well soon, johnr.
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Aye John,
I cannot do anything practical, but know that I will be wishing you both to get back to good health, with no lasting, lingering after effects.
My regards, Bill
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ok, back to the point, i found tis carb th other day and had forgotten who was asking. now ive remembered this, i will get a picture of the carb and see if its what you want.
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Yes it was me....just ventured along the road for the first time and it runs but could do with carb clean and tune, so if you have one it may help...
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This is the carb I have, I was told it was z200
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It looks right, pm sent
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Well... carb arrived yesterday, Thanks johnr, after much fiddling and cursing I still can`t get the little sod to run, it will occasionaly fire with carb cleaner in the airbox, twice it has popped back and set fire to itself, i was tempted to let it burn. Battery is currently on charge getting ready for round 8 or is it 12 ? The carb is now a hybrid of old carb and new one (both old) , The spark appears ok but when i removed plug I found the threads very bad, plug only goes in with great care. If it`s not going by the end of today it will be sold/broken/buried or forgotten about for a long time, it is taxed but may not be for long, wish i had kept the blue one......does anyone want e cheap z250 ?
thought not :-\