Results 1 to 10 of 10

Thread: Are ZXR250a and ZXR250c carbs the same?

  1. #1
    Join Date
    18th April 2012 - 07:48
    Bike
    1994 Kawasaki ZXR 250
    Location
    Auckland
    Posts
    37

    Are ZXR250a and ZXR250c carbs the same?

    As title states, are the carbs on the ZXR250a the same as on the ZXR250c ?

  2. #2
    Join Date
    30th June 2011 - 14:30
    Bike
    2007 Triumph Tiger 1050
    Location
    Pokeno, New Zealand
    Posts
    1,407
    Blog Entries
    2
    you could try the ZRX Owners Association forums.. (www.zrxoa.org) or the zrx owners club (http://www.zrxocboard.com)

    Very Helpful..
    "If a million people say a foolish thing, it is still a foolish thing." - Anatole France
    "An education isn't how much you have committed to memory, or even how much you know. It's being able to differentiate between what you know and what you don't." - Anatole France
    ZRXOA #9170

  3. #3
    Join Date
    1st September 2007 - 21:01
    Bike
    1993 Yamaha FJ 1200
    Location
    Paradise
    Posts
    14,125
    Blog Entries
    2
    When life throws you a curve ... Lean into it ...

  4. #4
    Join Date
    25th April 2009 - 17:38
    Bike
    RC36, RC31, KR-E, CR125
    Location
    Manawatu
    Posts
    7,364
    I would expect them to be jetted differently if they are the same body carbs, and perhaps even different cables/hoses etc. There are a few online 'fiche' type sites which should give the part numbers, though these sometimes change from year to year for identical parts anyway. iYRe's suggestion is probably the most definitive.

    Quote Originally Posted by FJRider View Post
    wikipedia? the guy is going to need a far better source of info than that!
    "A shark on whiskey is mighty risky, but a shark on beer is a beer engineer" - Tad Ghostal

  5. #5
    Join Date
    17th July 2005 - 22:28
    Bike
    Dougcati, Geoff and Suzi
    Location
    Banjo town
    Posts
    10,162
    ZXR250A/B/C/D run the same carbs, minus jetting (we never had B/D here anyway, some had flatslides)

    I'm certain the ran different needles in the C and restricted C models.

    They're all D30 series though
    Are you needing some carb help?
    Quote Originally Posted by Paul in NZ View Post
    Ha...Thats true but life is full horrible choices sometimes Merv. Then sometimes just plain stuff happens... and then some more stuff happens.....




    Alloy, stainless and Ti polishing.
    Bling your bike out!
    PM me

  6. #6
    Join Date
    18th April 2012 - 07:48
    Bike
    1994 Kawasaki ZXR 250
    Location
    Auckland
    Posts
    37
    Quote Originally Posted by ducatilover View Post
    ZXR250A/B/C/D run the same carbs, minus jetting (we never had B/D here anyway, some had flatslides)

    I'm certain the ran different needles in the C and restricted C models.

    They're all D30 series though
    Are you needing some carb help?
    Yeah following on from that thread in the tech area where you posted some helpful info for me. I can get a set of carbs off another ZXR250 for cheap so I am thinking of getting them in case I hit any major snags with mine (I figure it helps to have a source of some spares).
    The guy says they are off a 1994 ZXR 250A which in itself doesn't make sense, but if they are all similar then I may get them...

  7. #7
    Join Date
    1st September 2007 - 21:01
    Bike
    1993 Yamaha FJ 1200
    Location
    Paradise
    Posts
    14,125
    Blog Entries
    2
    Quote Originally Posted by Spoonrider View Post
    The guy says they are off a 1994 ZXR 250A which in itself doesn't make sense, but if they are all similar then I may get them...
    With what I have read .. 94 and after 250 models were restricted due to changes in Law in Japan at that time (from 45 HP down to 40 HP). What the actual restrictions were, you may need to find out.
    When life throws you a curve ... Lean into it ...

  8. #8
    Join Date
    12th September 2009 - 16:14
    Bike
    .
    Location
    .
    Posts
    1,750
    Quote Originally Posted by Spoonrider View Post
    I can get a set of carbs off another ZXR250 for cheap so I am thinking of getting them in case I hit any major snags with mine
    How cheap?

    Carbs are expensive. If yours are going fine and you're not planning on keeping your bike past the apocalypse then you may very well be better off just carrying on until you get a new bike.

  9. #9
    Join Date
    18th April 2012 - 07:48
    Bike
    1994 Kawasaki ZXR 250
    Location
    Auckland
    Posts
    37
    Quote Originally Posted by Ender EnZed View Post
    How cheap?

    Carbs are expensive. If yours are going fine and you're not planning on keeping your bike past the apocalypse then you may very well be better off just carrying on until you get a new bike.

    I want to open my existing ones and clean them as well as put shims under the needles are it is possibly running lean cos of the custom muffler install on the bike. I won't go into specifics in this thread as there is another thread with all the details, but there is a hesitation issue currently around 4 - 8k rpm. Just in case a gasket is buggered or whatever when I open the existing carbs it would be nice to have some spares in case...

  10. #10
    Join Date
    17th July 2005 - 22:28
    Bike
    Dougcati, Geoff and Suzi
    Location
    Banjo town
    Posts
    10,162
    Quote Originally Posted by FJRider View Post
    With what I have read .. 94 and after 250 models were restricted due to changes in Law in Japan at that time (from 45 HP down to 40 HP). What the actual restrictions were, you may need to find out.
    Jetting/needles/diaphragm springs, cams, thicker headgasket, CDI unit were all changed in 94 to the units used in the ZR250 Balius (little nekkid bugger)

    Quote Originally Posted by Spoonrider View Post
    Yeah following on from that thread in the tech area where you posted some helpful info for me. I can get a set of carbs off another ZXR250 for cheap so I am thinking of getting them in case I hit any major snags with mine (I figure it helps to have a source of some spares).
    The guy says they are off a 1994 ZXR 250A which in itself doesn't make sense, but if they are all similar then I may get them...
    Quote Originally Posted by Spoonrider View Post
    I want to open my existing ones and clean them as well as put shims under the needles are it is possibly running lean cos of the custom muffler install on the bike. I won't go into specifics in this thread as there is another thread with all the details, but there is a hesitation issue currently around 4 - 8k rpm. Just in case a gasket is buggered or whatever when I open the existing carbs it would be nice to have some spares in case...
    I'd say buy new gaskets if it does go tits up, they should be the same bowls as the CVKD32 on a bunch of other biker, but don't quote me on that
    You're more likely to come across some sad screws on the carb bowls if completely stripping them
    Get a maginfying glass and check the needles for wear and the needle seat/emulsion tubes.

    Clean the float needle seats with brasso and a cotton bud

    Look up keihin jet on trademe and there's a seller who specialises in carbs (forgot the name, great to work with) I think their webiste is smebike? They'd be ideal to talk to

    If the carbs are uber cheap, use them to get used to playing with carbs, set the float heights etc etc
    They're very, very simple though
    Quote Originally Posted by Paul in NZ View Post
    Ha...Thats true but life is full horrible choices sometimes Merv. Then sometimes just plain stuff happens... and then some more stuff happens.....




    Alloy, stainless and Ti polishing.
    Bling your bike out!
    PM me

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •