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1998 ZXR250R such a thing?

Discussion in 'Kawasaki 250cc In-line 4's' started by De Loc, Dec 10, 2013.

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  1. De Loc

    De Loc Active Member Premium Member Contributing Member

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    I'm about to buy a 2nd zxr250 for spares, it's supposedly a 1998 R, but I can't find any info which says a 98 R model exists. 90-93 only. Can anyone confirm this?

    I've asked him to take a photo of the VIN plate but he says he took it off to paint the frame and has lost it that's why it's so cheap

    Another question,

    Does anyone know the cam specs between the different models?

    And with the CVK D32 upgrade, is it a straight bolt on ?
     
    De Loc, Dec 10, 2013
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  2. kiffsta

    kiffsta Senior Member

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    98 may be the year of compliance


    Sent from my iPhone using Tapatalk
     
    kiffsta, Dec 10, 2013
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  3. De Loc

    De Loc Active Member Premium Member Contributing Member

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    That's what I was thinking. I asked him he said that also. He thinks there's a date and VIN engraved on the frame and he'll check it out later today.
     
    De Loc, Dec 10, 2013
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  4. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Ninja ZXR-250 models

    • ZX-250A: Sold from 1988 to 1991.
    • ZX-250C: Sold from 1991 to 2004 1991-1998 in Japan 1997-2004 in Malaysia (these models were only produced in a silver and black color scheme). Changes in bodywork and front suspension 1994 models and after restricted to 40HP and reduced weight (141kg vs 144kg). This bike was unofficially re branded as the ZX-2R or ZXRR in Australia by importers.
     
    GreyImport, Dec 10, 2013
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  5. De Loc

    De Loc Active Member Premium Member Contributing Member

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    I've red that on wiki Grey, that's why i was asking if a 98 R exists, thinking he's talking it up to b an R so I buy it. Thanks guys
     
    De Loc, Dec 10, 2013
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  6. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Arnt all the inline 4s of that era 'R's ? .... if not 'RR's.

    Thats a question for anyone as I dont really know
     
    GreyImport, Dec 10, 2013
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  7. kiffsta

    kiffsta Senior Member

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    There is a R model, I have never seen one before

    The R version has larger CVK D32 (32mm)carburetors, taller 1st to 3rd gears than a regular ZXR250, different CDI as well as some other small changes. Some models also had a single seat cowl.
     
    kiffsta, Dec 10, 2013
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  8. De Loc

    De Loc Active Member Premium Member Contributing Member

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    I'm about to buy one for spares. Pretty keen on the CVK D32'S and taller 1st-3rd.. Think I'll just drop the whole engine, gbox and loom in as it has half the amount of kms on it and no timing chain rattle. Definitely going to get a derestricted CDI for it too and velocity stacks.

    Also has near new drive chain, tyres and discs and pads all round. So a very good bike for spares. Just needs new plugs and leads.

    Also curious if I'd need to upgrade the jets slightly as mine has a hi flow filter and exhaust can. Anyone know the stock jet sizing for both the CVK D30 and 32's?

    Also think we figured out the problem with my brakes, seems as though the front BMC has died in the ass.
     
    De Loc, Dec 10, 2013
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  9. DougFella

    DougFella Well-Known Member Premium Member Contributing Member

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    It is possible, if so it's a very rare example of the D model or R model as Chris mentioned. Most of the information has already been mentioned but what I have read/researched/know.

    The R version has larger CVK D32 (32mm)carburetors, taller 1st to 3rd gears than a regular ZXR250, different CDI as well as some other small changes. Some models also had a single seat cowl.

    They were sold in limited supply between 1997-2004 in Malaysia.

    You should be able to identify it on the original chassis VIN... it may have been scratched out though and that makes it hard. It should read somewhere in that vin ZXR25oD#### or ZXR250DR####. Not 100% sure as I have never seen one myself.

    The CVK3o uses 122 outside 125 inside and 35 on pilot
    The CVK32's use 135 main jet and a 35 pilot jet.
     
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    DougFella, Dec 10, 2013
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  10. De Loc

    De Loc Active Member Premium Member Contributing Member

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    Thanks Doug :D
     
    De Loc, Dec 11, 2013
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  11. De Loc

    De Loc Active Member Premium Member Contributing Member

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    Just found this, out of a zxr400 workshop manual.

    Are the jet sizes you gave me for the 32's off a zxr250 Doug?

    uploadfromtaptalk1386715163515.jpg
     
    De Loc, Dec 11, 2013
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  12. DougFella

    DougFella Well-Known Member Premium Member Contributing Member

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    Yes as far as I know the 400 and 250 uses different jetting in the CVK32.

    Got to remember that they are two different engines and will use completely different air/fuel mixtures to run properly. I would say the 400 uses only 98's as stock because of the engines dynamics. ZXR250 prob demands more fuel at high RPM's and runs a richer mixture than the ZXR400 even though it's a smaller engine.

    If you check all the kits you can buy for the ZXR250B model, which also uses the CVK32's they come with 135's as well.

    Hope that helps :D
     
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    DougFella, Dec 11, 2013
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  13. De Loc

    De Loc Active Member Premium Member Contributing Member

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    Thanks Doug, yes it does help.

    I'm thinking I might need to go up to like 140 and 38 or 40 or a similar combo when I fit velocity stacks. What are your thoughts ? Where have you found kits for the ZXR250B?
     
    De Loc, Dec 11, 2013
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  14. DougFella

    DougFella Well-Known Member Premium Member Contributing Member

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    Here's the kit you'll want:
    http://www.motorcyclespareswarehous...i/products/kk-0176n-carb-repair-and-parts-kit

    Hmm honestly not sure if going past 135 is going to make much difference. Maybe best ask a mechanic or someone who is a pro in engine tuning about that one. I'd imagine you could just be putting too big jets in to suit the engine considering it was originally designed to run/last the best on 122-125's. I would want to be sure you're not going to do any damage to anything before doing so. But it's really not my area of expertise haha.

    Although at this rate your gonna need a bigger fuel tank haha!
     
    DougFella, Dec 11, 2013
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  15. De Loc

    De Loc Active Member Premium Member Contributing Member

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    Haha definitely. Yen I'll go speak to a pro bike tuner n see what he thinks.. When I swap the engine and gbox over I'll post an update. Now I'm wandering why the standard zxr250 runs 2 sets of jets for inner and outer cylinders lol

    On another note. Has anyone successfully installed a fuel gauge on their zxr250? Would be nice to know how much is in there without opening the tank lol couldn't be too hard

    Definitely will be installing a Shift light too when I get the derestricted cdi

    The Carbs have supposedly been rebuilt not long ago so hopefully just a clean will suffice. Are the tanks the same capacity between all models?
     
    Last edited by a moderator: Dec 11, 2013
    De Loc, Dec 11, 2013
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  16. DougFella

    DougFella Well-Known Member Premium Member Contributing Member

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    The A and B model tanks slightly different shape. Not sure of capacity difference but it's 15L on the C and the 2 tanks are not interchangeable between frames. If you end up installing a fuel gauge somehow let me know it would be a handy thing to have.

    And to satisfy your curiosity it runs a 122 on the outside and 125 inside because the engine gets slightly hotter on the two inside cylinders. So they just run it that little bit richer to make up for it.
     
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    DougFella, Dec 11, 2013
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  17. De Loc

    De Loc Active Member Premium Member Contributing Member

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    Ahh I see, makes sense. . Will post up a how to thread if I do end up installing a fuel gauge
     
    De Loc, Dec 11, 2013
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  18. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Im certainly no expert on jetting but if u intend to run open air intakes you need to do your homework.

    Talking to a pro I guess will help but wheres the fun in that? ..... alot of googling and a bit of trial and error with jet sizes would be how I approach it ..... and you may find it just wont work anyway.

    I would take the 'carbs have been done' thing with a grain of salt ...... look in My Fizzer thread and you will see an example of a POs ' carbs done'.
    The only time my FZR carbs were done is 25 years ago by a little Japanese man employed by Yamaha..... and by me just recently.

    I would be getting it running perfectly with everything stock so you have a good base before u start changing things ..... otherwise u will be chasing your tail.
     
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  19. De Loc

    De Loc Active Member Premium Member Contributing Member

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    Makes sense. Well I'll just drop the engine and gbox in n get it running properly. Then I'll start playing with stacks and what not. Would you suggest running bigger jets in the middle on the 32's as well?
     
    De Loc, Dec 11, 2013
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  20. DougFella

    DougFella Well-Known Member Premium Member Contributing Member

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    It's not really necessary to run bigger middle ones once you go past 125. The only reason they did it with the stock setup was everything was originally designed/tuned and engineered with that in mind. You'll get more than enough effect with anything bigger than that to not need to worry about different ones. Plus it makes tuning it easier as well.
     
    DougFella, Dec 11, 2013
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