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Project Bumblebee - Gixxer250

Discussion in 'Your 250cc Projects' started by kiffsta, Feb 14, 2016.

  1. kiffsta

    kiffsta Administrator Staff Member Dirty Wheel Club Contributing Member

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    Well, didn't I give people a scare today, I was out with the family shopping in the city, I managed to get myself alone while I watched the count down of an ebay auction for a baby gixxer which I had bid on, at any rate with 10 secs to run I am winning the bid, and as the counter his 0 secs and I realise that I won, I let a shout followed by a fist pump. I had quite a few shoppers looking over at the mad man and his phone.

    At any rate, I am now the proud owner of a GSXR250 GJ73a and super stoked. I have never been able to find a decent one and to win this one was great. I texted the seller and got his address and did a run out to Brassell ( Ipswich) to pick it up. The seller was a bit worried I would part it out but I told him no way, this one will be bought back to life. He gave me the rundown that a friend had had a crack at the carbs and it no longer runs. Also he said the fork seals need some attention.

    Anyway, fast forward an hour and the bike is home, the carbs are off and guess what, all 8 jets are blocked. They are now soaking in threebond, carbs look the same as what's fitted to fizzers......

    I will hopefully score some plugs tomorrow and get this girl fired up.

    Does anyone know the correct air fuel mix for these carbs ? Its a GJ73a

    A few pics if I may :thumb_ups:

    gixxer.jpg gsxr250 001.JPG gsxr250 003.JPG gsxr250 005.JPG gsxr250 014.JPG gsxr250 015.JPG gsxr250 002.JPG gsxr250 004.JPG gsxr250 011.JPG gsxr250 012.JPG gsxr250 013.JPG

    gsxr250 006.JPG
     
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  2. Th3_Huntsman

    Th3_Huntsman Senior Member Premium Member Contributing Member

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    Yeeewww, those carbs look like they were horridly blocked.
     
  3. Phil

    Phil Senior Member Premium Member Contributing Member

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    Nice pick up mate, I to watched the auction count down fully expecting more bids???
    The counter hit zero and I smiled.....Chris just bought a Gixxer 250 :thumb_ups:

    Looking at the carbs on the bike.....I'd swear I was looking at my old Bandit.
    The blue tape warrants further inspection.....someone has been fiddling :mad:

    The bike looks great, can't wait to hear that engine roar once again :D

    Nice pick up, long time coming to finally score a gixxer 250 :drinks:
     
  4. Aaron81

    Aaron81 Member

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    Well done mate, I would throw a couple of swears in there but then where would the comradery be lol, Done well mate. Cant tell from the positioning of the pics taken but it kind of looks like the P.O has put in an aftermarket/new fuel pump where the blue tape is but most definitely worth closer inspection. Once again well done good score man
     
  5. risky

    risky risky

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    put me down as a prospective buyer as it would be the last one to add to the collection.
     
  6. Joker

    Joker CLUB250 Premium Member Contributing Member

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    I like the paint job!!

    Those carbs look familiar, surely someone hasn't tried to throw bandit carbs on it (GJ74a...?) Don't know if they're the same...?
     
  7. Clancy1

    Clancy1 Well-Known Member

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    Very nice! Once I'm finished this gsx250 I'll be chasing something similar :)
     
  8. KICKERMAN360

    KICKERMAN360 Well-Known Member

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    It's always interesting to see differences in the 'same' sort of bike (I4 250cc bikes). What are the differences between the Suzuki and Honda? It's also interesting to see racing-style parts like the under-slung rear caliper.
     
  9. Linkin

    Linkin The Apprentice Premium Member Dirty Wheel Club Contributing Member

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    Those carbs are eerily familiar. The inlet ports on the head as well. Very similar to a fizzer.
     
  10. GreyImport

    GreyImport Administrator Staff Member The Big Cheese Contributing Member

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    They are supposed to be BSW27s
     
  11. GreyImport

    GreyImport Administrator Staff Member The Big Cheese Contributing Member

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    Only has the first models and a bit scratchy but interesting ....

    Untitled.jpg
     
  12. kiffsta

    kiffsta Administrator Staff Member Dirty Wheel Club Contributing Member

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    well I replaced the plugs, set the fuel mix screws to 1.25 turns out, she took some coaxing, but she started
     
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  13. Grasshopper

    Grasshopper Well-Known Member Premium Member Dirty Wheel Club

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    Nice find!! :thumb_ups:
     
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  14. kiffsta

    kiffsta Administrator Staff Member Dirty Wheel Club Contributing Member

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    Well I have owned FZR's, ZXR's and CBR's, to be honest I think this is a bloody good looking bike, when you get into the mechanicals I would have to say its a very closely related to the FZR, even the tacho starts at 4000RPM and it even sounds like a fizzer , I am yet to ride it so its hard to compare.

    Here is a vid of it running, you have to remember the previous owner had the exhaust insides ripped out so it sounds like an F1 car , so I will need to find something to muffle that sound or it wont pass a road worthy . The engine sounds strong, but I am not keen to rev it too high until I change the oil. The carbs are just sitting on there as is the airbox and it sounds like it is sucking some extra air.

    I just remembered that I left the choke on during the video so that wont help it run all that well either, DOH :thumb_ups:

    All 4 plugs that I pulled out were shockingly black

     
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  15. KICKERMAN360

    KICKERMAN360 Well-Known Member

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    Yeah, like, the goal was to create essentially the same bike with near identical specs yet when you look up close they're so different.
     
  16. Simon

    Simon Well-Known Member Premium Member Contributing Member

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    Welcome to the gixxer club matey!!!!!! what a corker of a buy - and what a looker of a bike:):):) once the carbs are a bit better set up expect something like below - loving em mate - loving em!!

    Sent you a pm with settings - and if its looking for a home then risky's in competition!! All specs posted above are for the 72a model which is pretty different to your 73a - 27mm dual carbs as opposed to you 29/32 mm bank of four (std or sp?), different pistons,cams,valves,lift,duration,cdi,forks,shock - compare the frames I think the 73a was reported to be 8 or 9 times stiffer - the 72a was the earlier model - and a bugger to extract extra power from - yours is the revised version from when the 250 4 cyl 4 stroke market took off - Suzuki did lots of the work for us - this one is yours boss - :):):)
    Loving it matey, cheers si
     
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  17. Simon

    Simon Well-Known Member Premium Member Contributing Member

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    Gixxer 250 in action..lap 2 on..favourite you tube clip of all time..boydie will second the notion..entry, mid corner and exit are sublime..but a bit more needed on the straights :)!


     
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  18. kiffsta

    kiffsta Administrator Staff Member Dirty Wheel Club Contributing Member

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    My carbs are 29mm, alas my idle adjuster just snapped
     
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  19. Frankster

    Frankster See the World before you leave it Staff Member Premium Member Ride and Events Crew

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  20. U_B_WARE

    U_B_WARE Well-Known Member

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    very nice after seeing it last night.
     

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