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Thread: The Sensible Twin

  1. #31
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    Quote Originally Posted by husaberg View Post
    I think I seen might have seen a rod the other day?
    Too late now. Any progress on that download ? Do I need to send you a flashdrive ?

  2. #32
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    Quote Originally Posted by Grumph View Post
    Too late now. Any progress on that download ? Do I need to send you a flashdrive ?
    I forgot all about it.........
    Quote Originally Posted by Katman View Post
    I reminder distinctly .




    Kinky is using a feather. Perverted is using the whole chicken

  3. #33
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    Browsing the local VCC swap meet today, found these....Keihins, Downdraft, 28mm at the slide tapering to 30mm at the engine end.
    Obviously 2 stroke origin but VERY close together. They'll go on the twin nicely.

    Any suggestions as to engine of origin ?
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  4. #34
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    NSR I would guess.

  5. #35
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    Quote Originally Posted by Drew View Post
    NSR I would guess.
    Yip or NS250 they were similar.
    Quote Originally Posted by Grumph View Post
    Browsing the local VCC swap meet today, found these....Keihins, Downdraft, 28mm at the slide tapering to 30mm at the engine end.
    Obviously 2 stroke origin but VERY close together. They'll go on the twin nicely.

    Any suggestions as to engine of origin ?
    Ta06 is off the NS250
    Greg whats the code on the side. TA10?
    If so that makes them a MC16
    http://tech.nsr-world.com/nsr250/all...b-settings.php
    Venturi Diameter
    28mm
    Type
    TA10A
    Float Height
    13mm
    Main Jet
    #110
    Slow Jet
    #38
    Needle
    No.1 2QY
    No.2 2QZ
    Idle Speed
    1200 ± 100rpm
    Throttle Free Play
    2~6mm
    Air Screw Position
    1½ Turns out from fully closed
    Was the flash drive helpful?
    If you wanted something a little smaller, Drews Bro might still have a similar set of 24mm of a MVX250.
    Quote Originally Posted by Katman View Post
    I reminder distinctly .




    Kinky is using a feather. Perverted is using the whole chicken

  6. #36
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    Quote Originally Posted by husaberg View Post
    Yip or NS250 they were similar.

    Ta06 is off the NS250
    Greg whats the code on the side. TA10?
    If so that makes them a MC16

    Was the flash drive helpful?
    If you wanted something a little smaller, Drews Bro might still have a similar set of 24mm of a MVX250.
    I've got the MVX carbs at my place. From the spare bike.

  7. #37
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    Quote Originally Posted by Drew View Post
    I've got the MVX carbs at my place. From the spare bike.
    measure them up i had a feeling they were 24 but they might be 25 or 26mm
    Quote Originally Posted by Katman View Post
    I reminder distinctly .




    Kinky is using a feather. Perverted is using the whole chicken

  8. #38
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    Quote Originally Posted by husaberg View Post
    measure them up i had a feeling they were 24 but they might be 25 or 26mm
    No need to measure. They're 26mm. That's why they didn't get separated and stuck on whatever bucket I was slapping together at the time.

  9. #39
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    ...funny things those carbs...very slippery things...

  10. #40
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    Quote Originally Posted by husaberg View Post
    Yip or NS250 they were similar.

    Ta06 is off the NS250
    Greg whats the code on the side. TA10?
    If so that makes them a MC16

    Was the flash drive helpful?
    Yeah, TA10. Thanks - i didn't have much to do with those NS250's when they were being raced here, I'd never seen the carbs off one.
    I know there was at least one MC16 wrecked down here but the later NSR's were rocking horse poo in the SI.

    Yes, flash drive is good thanks. Some odd stuff on there though - I may have to loan it to Neil for the TZR125 info....

  11. #41
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    Quote Originally Posted by Grumph View Post
    Yeah, TA10. Thanks - i didn't have much to do with those NS250's when they were being raced here, I'd never seen the carbs off one.
    I know there was at least one MC16 wrecked down here but the later NSR's were rocking horse poo in the SI.

    Yes, flash drive is good thanks. Some odd stuff on there though - I may have to loan it to Neil for the TZR125 info....
    That might have been a mistake, are you sure 125?
    Was there some NSr125 stuff, I think that was for Bren i think?
    Wob posted something about the carbs a week or two ago, i think some of the FCR stuff might fit.
    Scott had one on the GPR150 at one stage also the GPR100 twin has them as well.
    Quote Originally Posted by Katman View Post
    I reminder distinctly .




    Kinky is using a feather. Perverted is using the whole chicken

  12. #42
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    Quote Originally Posted by husaberg View Post
    that might have been a mistake are you sure 125?
    Was there some NSr125 stuff I think that was for Bren i think?
    Wob posted something about the carbs a week or two ago, i think some of the FCR stuff might fit.
    Scott had on on the GPR150 at one stage and the GPR100 twin has them as well.
    Had a quick browse through the flash drive and after i'd seen what i needed, the rest is a blur....
    I'd expect that quite a bit of normal keihin jetting will fit. i'm confident i can get them to work.

  13. #43
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    Quote Originally Posted by Grumph View Post
    Had a quick browse through the flash drive and after i'd seen what i needed, the rest is a blur....
    I'd expect that quite a bit of normal keihin jetting will fit. i'm confident i can get them to work.
    Solder the pilot jets and bust out your twist drills old boy.

  14. #44
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    Quote Originally Posted by Drew View Post
    Solder the pilot jets and bust out your twist drills old boy.
    Still got the set you could buy below 1mm - and made up a set in 1986 from 1.0mm to 3.0mm in .05mm steps.
    You're talking to the (ex) guru of jetting for methanol at national level when it was still legal....

  15. #45
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    Oh dear, that's in my future probably Sunday with some old nail. I told him to ring a spare extinguisher. I'm not sure how clued up I want to become.

    MikeS sent me some NSR carbs if you run out of bits I'll send them down. Wasn't enough of an improvement on the 50 to continue, or in fact any improvement over pwk with two kinks in manifold.
    Don't you look at my accountant.
    He's the only one I've got.

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