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Project Tony's ZXR250s

Discussion in 'Your 250cc Projects' started by TonyZXR, Apr 28, 2018.

  1. TonyZXR

    TonyZXR Well-Known Member Premium Member

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    My Bike:
    GPX250, ZXR250A, ZXR250C
    Soo after fixing the fuel tap and electrical system it's not running the best . I have a feeling a bit of crap may have found its way into one of the carbs:(. In the meantime I thought eh might aswell install these finally before i pull the carbs off .
    20200821_153705.jpg
    4 ninja 300 coils and a small coil loom from a 2004 cbr600rr . Modified the harness to run the coils in series and installed them with a new set a sparkplugs while it was apart after I verified that it ran. (Old plugs were 3000kms old)
    20200823_173743.jpg
    Looks like it was running decent with cylinder 1 looking a tad lean . ( also they look alot darker in the photo) .

    20200823_173005.jpg
    Coils all installed and had to clearance the radiator fan slightly . Starts extremely easy susprisingly . Now to give the carbs a good clean and hopefully it'll run like normal again
     
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  2. TonyZXR

    TonyZXR Well-Known Member Premium Member

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    Pulled the carbs apart and as usual they're full of fine rust , will have to do a tankliner in the future. Carbs all clean and rechecked the pilot screws 2.75 turns out. Started it up and checked the balance and cylinder 1 was pulling more air than the other 3, might explain why that plug was a tad lighter than the rest. Took it for a ride and wow what a difference . Easy to start and feels extremely smooth right to redline.
     
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  3. TonyZXR

    TonyZXR Well-Known Member Premium Member

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    My Bike:
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    So unfortunately this happened yesterday. Combination of everyone suddenly braking . Me panicking and also being slightly distracted.
    20200905_150027.jpg

    Nosecones destroyed, muffler is scraped, brake lever broken , handle bar scraped, front gaurd scraped and side fairing scrapped and cracked aswell as all the brackets bent plus a fair bit more. Missed the tank and rear end atleast. Pretty bruised and sore today and my ego's hurt but we never think of that
     
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  4. TonyZXR

    TonyZXR Well-Known Member Premium Member

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    So did a bit of work on the crashed bike yesterday. Installed the new brake lever, repaired the scarred muffler and repaired the cut oil pressure switch wire and charged the battery up . I also found the charging system fault . I wish i took a photo. For a long time I noticed a fine white sand on top of the carbs and underside of the fuel tank. Thinking nothing of it I removed the reg/rec and lo and behold I found the charging system fault. I noticed the black potting material on the underside felt a little bit soft and it wasn't sitting level. The ceramic material inside the reg/rec had completely disintegrated ! That was the reason it wouldn't charge at idle . Replaced the reg with a spare, started it up and now it's charging properly which is a relief. Also while it was running I noticed cylinder 4 had a cold exhaust pipe so the carbs are going to need attention.
     
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  5. ShaneP

    ShaneP Well-Known Member Premium Member

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    ZXR carbies service intervals: regularly. Bummer
     
  6. TonyZXR

    TonyZXR Well-Known Member Premium Member

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    Doesn't help when you have a rusty tank too hehe. Gives me a chance to try out @maelstrom s new seals
     
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  7. TonyZXR

    TonyZXR Well-Known Member Premium Member

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    My Bike:
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    So the side fairing and nose cone are finally all repaired. Bit of a headache but atleast its all done. Bit of high fill on the repair areas and it's ready for paint :) 20211010_140131.jpg
     
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