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Help zzr250 one cylinder when cold

Discussion in 'Kawasaki 250cc Twins' started by Martin Green, Dec 22, 2020.

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  1. Martin Green

    Martin Green Active Member

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    Nice, thanks Danno
     
    Martin Green, Jan 5, 2021
    #21
  2. Martin Green

    Martin Green Active Member

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    I have about 8 sets of carbs to sort now so am very interested in a home made method of ultrasonic cleaning. I'm gong to look it up and report back.
     
    Martin Green, Jan 5, 2021
    #22
  3. ShaneP

    ShaneP Well-Known Member

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    They're cheap on eBay, it's what I use.
     
    ShaneP, Jan 5, 2021
    #23
  4. DannoXYZ

    DannoXYZ Well-Known Member

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    Yeah, I got my ultrasonic cleaner from eBay too. So much more useful than useless carb-spray. When I got bike that was to become my race-bike, it had sat around in guy's garage for a year. Took carbs apart and found this:
    [​IMG]
    Figured I'd just spray some carb-cleaner on it and be riding in 30-minutes. >Pffftt< Hah!!! Dried petrol crud just laughed at me as carb-cleaner rolled off clear as day having dissolved nothing.

    Just getting enough of that plastic off so I can reach jets took hours of careful scrubbing with brass brush. Once jets were removed, that crud was on walls of fuel-circuits all way to carb-venturi.

    Overall, it took over 50-hrs of scrubbing, ultrasonic soaking and micro soda-blasting to get those carbs back to factory-fresh clean.

    Here's some scrub-brushes - Amazon
     
    • Agree Agree x 1
    Last edited: Jan 6, 2021
    DannoXYZ, Jan 6, 2021
    #24
  5. Martin Green

    Martin Green Active Member

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    DannoXYZ - I followed your instructions to the letter and the bike runs like a champ.
    I now have a GPX250 that I don't need ;-)

    Thanks for your help in this, I learned a valuable lesson.

    Clean the carbs properly the first time.

    To that end I have purchased an industrial 10l ultrasonic cleaner and will be concentrating on all my carbs from here on in.
     
    • Like Like x 2
    • Nice Work Nice Work x 2
    Martin Green, Jan 7, 2021
    #25
  6. DannoXYZ

    DannoXYZ Well-Known Member

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    you're welcome!

    Good job on carb-cleaning!
    it's always feels awesome when you revive bike!
     
    • Like Like x 2
    Last edited by a moderator: Jan 9, 2021
    DannoXYZ, Jan 8, 2021
    #26
  7. DannoXYZ

    DannoXYZ Well-Known Member

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    Sorry, didn't see that emoji well on my phone. Meant to give you thumbs-up for job well done!!!:thumb_ups::thumb_ups::thumb_ups:
     
    • Funny Funny x 1
    DannoXYZ, Jan 8, 2021
    #27
  8. Martin Green

    Martin Green Active Member

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    yeah Its great, I hate to see these bikes go to breaking when they should be on the road.

    I have an MC19, a zxr250, two TU250, a 750 Zephyr, a dr 500, an sp400 and a vs750 to go through now. All are orphans that i'm trying to save.
     
    • Like Like x 2
    Martin Green, Jan 8, 2021
    #28
  9. DannoXYZ

    DannoXYZ Well-Known Member

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    yeah, they're such fun bikes, hate to see them go to breakers. A lot of GPX/EX250s get retired from my racing club. But they need quite a lot of work to convert back to street bikes. So many of them are broken for parts.

    I bought one in boxes and put it back together in weekend. Original tank was punctured by wrong fairing bolts and was too rusty. So I found good one online to complete package. Might paint it this weekend along with my race bike.

    [​IMG]

    [​IMG]

    [​IMG]
     
    • Like Like x 2
    DannoXYZ, Jan 8, 2021
    #29
  10. Martin Green

    Martin Green Active Member

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    Nice work, i'm going to need body work if you have any spare?
     
    Martin Green, Jan 8, 2021
    #30
  11. DannoXYZ

    DannoXYZ Well-Known Member

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    I do have some extra bodywork. Have everything except front fender, and upper-fairing needs repair. Might be costly to send from San Francisco though. DM me your address and I'll get quotes.
     
    DannoXYZ, Jan 9, 2021
    #31
  12. ShaneP

    ShaneP Well-Known Member

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    I, too, didn't like the idea of parting out bikes, but to put one back on the road you often need another to offer up their parts. The thing that took me a long time to realise was that it was the good bikes that get parted out and the sad cases that get restored. Seemed back-to-front
     
    • Agree Agree x 2
    ShaneP, Jan 9, 2021
    #32
  13. DannoXYZ

    DannoXYZ Well-Known Member

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    Yeah, it's not 1-for-1 though. One parted bike can help save many others.
     
    • Agree Agree x 1
    DannoXYZ, Jan 9, 2021
    #33
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