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Project Linkin's FZR250R 3LN3

Discussion in 'Your 250cc Projects' started by Linkin, Jan 31, 2015.

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  1. kiffsta

    kiffsta Senior Member

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    That's a 3ln6 or 7 switch block
     
    kiffsta, Feb 16, 2015
    #61
  2. Grasshopper

    Grasshopper Well-Known Member Dirty Wheel Club

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    Hmm.. the plot thickens...

    Here's a pic of the choke assy
    image(25).jpeg
     
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    Grasshopper, Feb 16, 2015
    #62
  3. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

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    Thanks for the pic, I can just unscrew the existing bracket and attach the choke to the one on the frame.

    After watching a video of a valve clearance check/shim, I think I'll take the bike to a bike mechanic instead of the local guy. He did fine on my Ninja but took his sweet time... the place in Marrickville I used for the second service had the Ninja done in 2 days...

    That leaking fuel hose going to carbs only leaks when the fuel tap is set to reserve. When the fuel tap is on or off, no leaks. The hose also has no clamp on it.

    Coolant overflow bottle is completely full, I'll have to drain some of it.

    The waiting game (Me vs. AusPost) begins...
     
    Linkin, Feb 16, 2015
    #63
  4. Grasshopper

    Grasshopper Well-Known Member Dirty Wheel Club

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    Interesting that it has a 3LN6/7 switch block - I wonder, apart from the 3LN3 frame... how much of the bike is actually 3LN7.... probably just engine/ecu switch block that is different on 3LN7.... what else...aah the tacho...?
     
    Grasshopper, Feb 16, 2015
    #64
  5. Joker

    Joker See "about me" for contact details. Contributing Member

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    Exup actuator sounds ok mate, you can loosen it up with a bit of WD40 or something (I sprayed mine and it sounded a bit smoother). It may be the valve on the exhaust itself though, if you take the cables off and spin it by hand it should be relatively free spinning.
     
    Joker, Feb 16, 2015
    #65
  6. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

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    I don't think it has a 3LN7 ECU... it revs past 16,500 - I checked. Yes yes I know, change the fluids and filters first... but I had to check.

    What I also checked is that it cycles through all the gears and doesn't make any strange noises... It pulls in each gear from a stationary position with no noises or other strangeness.

    Just need the filter and oil pan so I change the black water out! Itching to do it. I just hope it will stop sounding like a lawnmower and more like a bike.

    Since I haven't got the right tools for valve clearances (feeler gauges, shims) or time (since I plan to go to VJMC in Canberra -- March 13/14 weekend), I'll have to take it to a mechanic... I've decided to use the same guys who did my Ninja the second time round
     
    Linkin, Feb 16, 2015
    #66
  7. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    It's a clean looking bike Linkin, and your well on the way with the tidying up.
     
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    maelstrom, Feb 16, 2015
    #67
  8. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    @Linkin if the carbs are 3LN7 I will can fix you up with the missing/different parts as soon as I have them finished.
     
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    maelstrom, Feb 16, 2015
    #68
  9. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

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    I will definitely order two sets... but I have to crack the carbs open first, really don't want to do it as it appears they are fine

    The 3LN3 bits I ordered will be sent on to @Grasshopper along with the jet kits... His original carbs are sad :(
     
    Linkin, Feb 16, 2015
    #69
  10. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    Ahhh ok! I thought they were for yours :)
     
    maelstrom, Feb 16, 2015
    #70
  11. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

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    They were *supposed* to be, but I was super smart and ordered them before I had my hands on the bike. I may still be able to use them on mine.

    I need to access the radiator which means the tank will need to come off, so I will be able to get a peek at the carbs. Do you know of a way to tell what they are externally? Without pulling them to bits?

    Also, who's got instructions for getting the tank off, and will I need to drain it?

    Anyone know the capacity of the radiator/cooling system? I only have 1.7L of coolant left. It's not meant to be diluted (bel ray moto chill)
     
    Linkin, Feb 16, 2015
    #71
  12. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    @Stu Can you translate this for us please?
    FZR250_Numbers.JPG
     
    maelstrom, Feb 16, 2015
    #72
  13. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    Sorry, I don't know any external markings that would give it away. The jet housings are different from the 3LN1 to the others and you have to get at the slide housings to see if they have the square rings for the 3LN6-7 models.
     
    maelstrom, Feb 16, 2015
    #73
  14. Joker

    Joker See "about me" for contact details. Contributing Member

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    Hope this helps. Must be a document list of some sort.

    FZR250_Numbers.JPG
     
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    Joker, Feb 17, 2015
    #74
  15. zixxer

    zixxer Well-Known Member

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    if you have a mechanic 50 metres down the road, take the carby's radiator tank etc all off and just wheel it down, save you money and him time.
     
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    zixxer, Feb 17, 2015
    #75
  16. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    GreyImport, Feb 17, 2015
    #76
  17. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Great @Stu ..... that tells me something Ive wondered for a long time
    Theres no individual manuals for the 3LNs
    The base is the 2KR manual with addendums added for each 3LN model

    We have the 3LN1 addendum but not the others
     
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    GreyImport, Feb 17, 2015
    #77
  18. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Fuel tank front fixing

    Front fixing fuel tank.jpg

    Fuel tank rear fixing

    Rear fixing fuel tank.jpg
     
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    GreyImport, Feb 17, 2015
    #78
  19. Phil

    Phil Senior Member Contributing Member

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    Gosh, Yamaha certainly didn't want the tank to fly away ??? that is some serious connections there.
     
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    Phil, Feb 17, 2015
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  20. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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