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Help GSF250 GJ77A non VCT info

Discussion in 'Suzuki 250cc In-line 4's' started by Syreptious, Mar 7, 2023.

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  1. Syreptious

    Syreptious Active Member Premium Member

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    Hi all,
    Just picked up my first bike, which is a bit of a project. It's a 1996 GSF250 Bandit GJ77a Japanese Import.
    There seems to be a fair bit of information available for the GJ74a but not the later versions.
    I'm curious about if there was a changeover date for when the GJ77a got VCT, or if mine is a weird early model version. I've already ordered a lot of bits including carb rebuild kits so I'm hoping it hasn't had a 74a engine swapped into it.

    Also if anyone knows a source for carb insulators/intake manifolds that would be great.
     
    Last edited: Mar 7, 2023
    Syreptious, Mar 7, 2023
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  2. ruckusman

    ruckusman White Mans Magic Master Premium Member Dirty Wheel Club

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    Hello and welcome to the forums

    For nearly everything parts wise on the grey market import 250's - https://en.impex-jp.com/ is your friend

    For instance the GSF250VY is listed as having been sold in 'other' sales regions on impex - although it doesn't list it as a GJ77a
    https://en.impex-jp.com/catalogs/moto/suzuki-other/gsf250/gsf250vy-e24-y-2000-5907.html

    The Japan sales region lists the GJ74a
    https://en.impex-jp.com/catalogs/moto/suzuki/9900b-68030-020.html

    I would compare the intake manifold part numbers between them, then search the actual part numbers

    I don't own a Suzuki, but have assess some of their parts availability and prices - local dealers on some parts aren't too shocking.
     
    ruckusman, Mar 7, 2023
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  3. Linkin

    Linkin The Mechanic - Moderator Staff Member Premium Member Contributing Member Dirty Wheel Club

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    The VVT model is the GSF250VY, model year 2000. Australian delivered model, surprisingly not a grey import.

    I had one for a while that I bought off @kiffsta

    Good little bikes.

    If it helps the engine number on my VY model was J708114011

    Suzuki are pretty good with their engine numbers so check what yours is and maybe we can identify it. VVT model should have red valve cover and actuator on top. Non-VVT engines will have a clutch cover with dimples
     
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    Linkin, Mar 7, 2023
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  4. Why?

    Why? Well-Known Member Premium Member

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    Was that the one on Marketplace? In Melbourne?
     
    Why?, Mar 7, 2023
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  5. Syreptious

    Syreptious Active Member Premium Member

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    Nah in Brisbane, I bought it off a friend
     
    Syreptious, Mar 8, 2023
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  6. Syreptious

    Syreptious Active Member Premium Member

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    Thanks, I have been looking on impex as I have used it to look for parts for Japanese cars before. However mine doesn't fit into either of the models that are listed on there, so I'm not sure how suitable it all is.
    Interesting what you say about the dealership, I'd have thought they'd just shrug you off with a semi obscure import bike
     
    Syreptious, Mar 8, 2023
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  7. ruckusman

    ruckusman White Mans Magic Master Premium Member Dirty Wheel Club

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    I was looking at alternative bearing shells for the FZR250 and found that the Suzuki ones were mostly available and reasonably priced.
    I also did get some throttle shaft seals from the Suzuki carbs [same part as they're the same carbs essentially as of the FZR250].

    I know that's a limited scope when it comes to parts availability, but comparing Suzuki to Yamaha, it seems Suzuki is far better.

    Luckily the GSF250V was imported directly, so local dealerships are an actual option.

    Only thing I noticed on the parts schematics for the manifold rubbers for the two GSF250's listed on impex, was that one was basically tubular, so there had to be a casting on the head that it went over and the other had a mounting plate which bolted directly to the cylinder head.

    At least that makes it easy to discern which one may be the correct one.
     
    ruckusman, Mar 8, 2023
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  8. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    They do .... so only quote the part# .... dont mention what its for
     
    GreyImport, Mar 8, 2023
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  9. Syreptious

    Syreptious Active Member Premium Member

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    So mine being a 96, silver valve cover and no vvt actuator (although it almost looks like there's a location for it in the valve cover casting) is definitely a non-VVT like I thought. When I get a chance to pull the cover off again I'll have a look for the engine number, any idea where it should be?



    I see what you mean about the manifolds, mine is definitely the later style. It seems too that a lot of bikes use this style, so I'm considering measuring them up and trying to find something similar enough to work. I'll have to hit up suzuki and see what they say... cant hurt at least.
     
    Syreptious, Mar 8, 2023
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  10. Syreptious

    Syreptious Active Member Premium Member

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    lol, makes sense. Wouldn't be the first time I've had to do that
     
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  11. Linkin

    Linkin The Mechanic - Moderator Staff Member Premium Member Contributing Member Dirty Wheel Club

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    Engine number is above the clutch cover on the right hand side for most Suzuki's of this era
     
    Linkin, Mar 8, 2023
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  12. amct77

    amct77 the one that got away......

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    If you can post a picture of your bike from the right side we will be able to give you a more accurate guide to what you have.
    The engine number is a really good way to tell what motor you have as the gj74a model starts with j705- and has gj74a as the start of the vin on the steering stem of the frame.
    The two models have different frames and bodywork so it should be easy to distinguish the two.

    There could be a chance that you have a gj74a and 96 is the import year of the bike, I have seen this mistake sometimes when people advertise bandits and get a bit muddled when reading the import plate.

    Either way, if you are needing parts drop me a line; I might have it amongst my collection
     
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  13. amct77

    amct77 the one that got away......

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  14. Syreptious

    Syreptious Active Member Premium Member

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    I've attached a few photos of the bike below
    I think you might be right there, it's definitely a GJ77a from all the numbers and such on the bike. Seems to be like there might have been concurrent models[​IMG][​IMG][​IMG][​IMG][​IMG][​IMG]
     
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  15. Linkin

    Linkin The Mechanic - Moderator Staff Member Premium Member Contributing Member Dirty Wheel Club

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    That's definitely a GJ77A and not a VVT model, or it has had an engine swap. But the engine number seems to indicate not - it is only about 5000 units away from my old one.

    VVT models also have 'Bandit V' on the tail fairing, yours just has 'Bandit'

    Here are some pictures of mine

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]
     
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  16. Linkin

    Linkin The Mechanic - Moderator Staff Member Premium Member Contributing Member Dirty Wheel Club

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    Oh and fun fact - you can get a genuine suzuki centrestand kit for about $200

    42100-33810 - STAND SET,CENTER
    • Reference
      11
    • Part Number
      42100-33810
    • Description
      STAND SET,CENTER
    • Notes
      OPT
    • Price
      192.55
    • Qty On Diagram
      1
    • Stock in Store
      No Stock


    [​IMG]
     
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  17. Syreptious

    Syreptious Active Member Premium Member

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    Dang yours looks nice, hopefully mine comes up a bit better once I give her a clean up and find a way to remove the nasty black spray paint that a previous owner has used on various bits.
    I was looking at the centre stands on Impex, do you think one would be worth getting? I've been tossing up between that or a set of paddock stands as I need to replace the fork seals, and might have to look at the rear shock. Trying not to spend a whole lot on it before it sees the road though, as it is my first bike.
     
    Syreptious, Mar 8, 2023
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  18. Linkin

    Linkin The Mechanic - Moderator Staff Member Premium Member Contributing Member Dirty Wheel Club

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    Centrestand worth it just for chain maintenance alone. Centrestand with a jack and a block of wood under the engine allows you do to both forks and shock without stands, at the same time.

    The rear shock went on mine, I ordered a YSS unit to replace it. The bearings in the linkage were in a sorry state and needed extensive cleaning and greasing to make serviceable. I also overhauled the front forks previously with new seals, bushings and oil.
     
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  19. amct77

    amct77 the one that got away......

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    That motor is the right one for that frame.
    The j705 motor doesn't have the breather hose near the clutch case.
    I think you have yourself a model that might be even harder to get parts for.
    If you're after a headlight let me know, I have just pulled one off a bike that should fit.

    I cross checked centre stands and the ones I have will only fit the earlier models, but if you want to try a bit of cut and weld job type thing; I can sell you one....
     
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  20. amct77

    amct77 the one that got away......

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