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Thread: Alright what kind of carb is this?

  1. #1
    Join Date
    May 2003
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    Shediac, New Brunswick
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    Alright what kind of carb is this?

    I just won this and Don't really know what it is... says it bolts on to a 200x intake, and it deffently looks oversized..
    Anyone?
    '04 450r, hr +3 stroker, s2 hotcam
    '84 Honda 200x
    slow restro


    Previous rides 82 Yamaha yt175, 85 Yamaha 225DR, 84 Honda 200M, Ski-doo Olympic 340

  2. #2
    RichinMO's Avatar
    RichinMO is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
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    Waynesville, MO
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    321
    Looks like it says Mikuni on it beside the choke plunger, so its not off a Honda. Clean it up and see if you can get any ID off it.
    1985 ATC250ES
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    1984 ATC200S "Little Red" - Trailer hitch, Hondaline: Front and Rear Racks, Cooler Rack, Tripmeter, HL Grille, Rubber Footpeg Covers, Mudflaps.
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  3. #3
    Join Date
    Feb 2003
    Location
    California
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    623
    They used to make an adapter for mikuni carburetors to bolt them to a 200x, for people that wanted a bigger carb for it.

  4. #4
    Join Date
    Oct 2005
    Location
    Pennsylvania
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    Thats definitely Mikuni- There were two mounting option "SPIGOT " or Flange. Thats a flange mount . Measure across The inlet side in MM to find a Group model
    And yes there was an adapter to mate those to hondas - but probably long since discontinued
    Buy American! Unless your only option is a HARLEY.

    A customer walked in to my shop and Impatiently stated "My car doesnt start, Whats the problem?"I responded with a smile-"Yep that sounds like your problem alright"----

  5. #5
    Join Date
    Oct 2005
    Location
    Pennsylvania
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    Is the throttle valve still in there? A machine shop guy could probably make you a plate on his lunch hour for a few bucks. Then all that would be left is cabling. Might be fun?
    Buy American! Unless your only option is a HARLEY.

    A customer walked in to my shop and Impatiently stated "My car doesnt start, Whats the problem?"I responded with a smile-"Yep that sounds like your problem alright"----

  6. #6
    Join Date
    May 2003
    Location
    Shediac, New Brunswick
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    1,126
    What do I need an adaptor plate for?.. I asked him if it would bolt to a 200x intake and he said yes?....
    Does this seem like it will be a good carb?..

    Also when people say the carb is a 22mm 24mm 26mm etc.. on what side are they measuring?
    '04 450r, hr +3 stroker, s2 hotcam
    '84 Honda 200x
    slow restro


    Previous rides 82 Yamaha yt175, 85 Yamaha 225DR, 84 Honda 200M, Ski-doo Olympic 340

  7. #7
    Join Date
    Oct 2005
    Location
    Pennsylvania
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    863
    On the inlet side - All the way into the center
    where the air actually passes thru is the diameter you want to measure
    As far as a good carb-Try it out and see, maybe too big, maybe not-maybe jetting will bring it close to what you want, You wont know till ya try it. as far as the adapter---You have the carb and you have the bike in front of you--If it fits --Kudos
    If not, make it fit-(Adapter)
    Buy American! Unless your only option is a HARLEY.

    A customer walked in to my shop and Impatiently stated "My car doesnt start, Whats the problem?"I responded with a smile-"Yep that sounds like your problem alright"----

  8. #8
    Join Date
    May 2003
    Location
    Shediac, New Brunswick
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    yeha I dont have the carb yet, it was an ebay buy. It diffently looks bigger than the 24mm stock carb.. hopefully it fits with-in the tight frame.
    '04 450r, hr +3 stroker, s2 hotcam
    '84 Honda 200x
    slow restro


    Previous rides 82 Yamaha yt175, 85 Yamaha 225DR, 84 Honda 200M, Ski-doo Olympic 340

  9. #9
    Join Date
    Oct 2005
    Location
    Pennsylvania
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    863
    OK didnt know ya didnt have it yet. Its rare to find a honda Mikuni Combo. Bigger carb should help with Higher compression
    Buy American! Unless your only option is a HARLEY.

    A customer walked in to my shop and Impatiently stated "My car doesnt start, Whats the problem?"I responded with a smile-"Yep that sounds like your problem alright"----

  10. #10
    Join Date
    May 2003
    Location
    Shediac, New Brunswick
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    Alright I finally got this carb. I measured the carb and i am reading 28.5-29mm .. but thats not in the middle.. just on the outer edge.. I only have a ruler.
    I dont see any numbers or anything on the carb, anyone have an idea of where they would be if they were on it? Also the floats are weird.. They are seperate and just seem to float around seperate from the needle valve.. not like the other atc carb's i've been into.
    '04 450r, hr +3 stroker, s2 hotcam
    '84 Honda 200x
    slow restro


    Previous rides 82 Yamaha yt175, 85 Yamaha 225DR, 84 Honda 200M, Ski-doo Olympic 340

  11. #11
    Join Date
    Jul 2005
    Location
    Richland WA
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    808
    Look on Sudco.com, they might have a diagram. Float sounds broken, the needle should be linked to it with a wire clip. (?)

  12. #12
    Join Date
    Nov 2003
    Location
    Newfoundland
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    5,280
    That is a VM series Mikuni. When you say the floats come away from the needle valve do you mean they stay in the float bowl? If so thats normal, my 34mm Mikuni VM is the same way. Simple carbs to work on too. Does it fit?
    My Feedback 85 TECATE 500 08 Honda 450R

  13. #13
    Join Date
    May 2003
    Location
    Shediac, New Brunswick
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    No I dont think the float is broken. It's just that the floats are seperate. It looks like it would work.
    Yes the carb will bolt right to a 200x intake, I don't know if it will fit in the frame or not though.
    Should I expect any gains from this? Is it worth the hassle? The slide is bigger, and the "in" side of the carb measures 40mm (where the filter bolts to or wtv) and my other carb is 35mm there.
    '04 450r, hr +3 stroker, s2 hotcam
    '84 Honda 200x
    slow restro


    Previous rides 82 Yamaha yt175, 85 Yamaha 225DR, 84 Honda 200M, Ski-doo Olympic 340

  14. #14
    Join Date
    Nov 2003
    Location
    Newfoundland
    --
    5,280
    Expect a little loss in bottom end and a gain in mid to topend power.
    My Feedback 85 TECATE 500 08 Honda 450R

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