Best Carburetor For 66/80cc 2-Stroke

Discussion in 'Intake & Exhaust' started by Maskot, Dec 16, 2013.

  1. Maskot

    Maskot New Member

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    $100 max and any advice on getting the old girl to 40 with it.

    Any other general recommendations are appreciated, I do have the proper equipment to run the bike that fast.

    xct2
     
  2. MotorBicycleRacing

    MotorBicycleRacing Well-Known Member

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    Seriously, how can you get the right advice if we don't know what you are running now?
    A Carb by itself will do little to nothing to make your bike? faster.

    A good expansion chamber, some cylinder porting and a higher compression head with a correct squish band along with gearing changes will hit 40 easily.

    What Carb do you have now?
     
  3. Maskot

    Maskot New Member

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    I asked a question, you did not answer it, I should have also stated the one I currently have broke at the mount, now either give some good advice that I don't already know, or delete your account.
     
  4. MotorBicycleRacing

    MotorBicycleRacing Well-Known Member

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    You funny. I like that delete my account line :D

    Do you have the stock muffler and 44 tooth sprocket as well as a broken carb ?
     
  5. Maskot

    Maskot New Member

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    I'm working on a street racing muffler with expansion chamber, I have a 44 tooth sprocket on a certified heavy duty wheel hub and spokes. And a CNS v.3 broken carb, which has been the nightmare of my life.
     
  6. Greg58

    Greg58 Well-Known Member

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    The nt is a good start, I have read many members talk about getting good speed from the nt when the engine is tuned correctly. I run the nt on one of my bikes and it works well.
     
  7. maniac57

    maniac57 Old, Fat, and still faster than you

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    Stock nt carb, tuned pipe and smaller rear sprocket. I run a 36 tooth.

    You did not give us much to go on that first post and it's harder to help if we don't know what you are running.
     
  8. rogergendron1

    rogergendron1 New Member

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    i can run close to 40 mph on a 44 t rear but only at high rpms for short bursts, the way to get there is a good port and polish, high comp... decking the jug and head and using a head with a good squish, a tunned pipe or strait pipe tunned length for the rpm your running at, and a well tunned carb.

    the cns carb is an awsome carb if you tune it right, i am running the cns v1 and its awsome !

    the easy way to go faster is to change gearing it can make all the differance in the world ! just going from a 44 to a 36 will make you feel a differance, the only reason i keep the 44 is cause i love the torque and i can go faster with more rpms at the cost of motor life
     
  9. flybytaco

    flybytaco Metal Molding Madman

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    Ive been running a zama pulse carb with a custom built intake. Ripping wheelies w a 42t sprocket.. if you want more info pm me...
     
  10. 2door

    2door Moderator
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    Oh please! Give the man an answer!

    Order an NT carburetor, install it and go ride your bike and enjoy it. The NT is by far the best all-round carb for a stock, unmodified Chinese 2 stroke motorized bicycle engine.
    If you want to race be prepared to spend some money. If you want to keep up with traffic, go buy a motorcycle. If you want to enjoy your bike install a carburetor that will give you all the performance you can expect from a stock 66cc engine.

    Tom
     
    Bikeguy Joe likes this.
  11. Huffydavidson

    Huffydavidson STREETRACER/MANUFACTURER

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    Hey 2door I am the traffic.
    LMAO
     
  12. sublunacy

    sublunacy New Member

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    Cant jet an engine correct till everything else is finished and correct.

    the nt carb comes stock on my gamefisher 3hp and it rips hard from idle to redline. i had my 48cc do the same.
    there lots of choices so use what is easiest for YOU please. money wont bring you joy on its own/ just an empty bank account plus the fact that anything more than sandpaper is pipedream unless u know what your doing and have the labour/ skill to back up your ego. no offense please

    .duh.
     
    #11 sublunacy, Feb 15, 2014
    Last edited: Feb 15, 2014
  13. Tai The Guy

    Tai The Guy New Member

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    Of course, so many ppl are recommending the stock nt carb, because so many ppl have never tried anything else. A delorto Sha, or keihin clone will absolutely add to your hp/torque. So much so, that alotta veteran builders would argue that a good valve/carb is right up there with a good mz65 type pipe, as 1 of the best upgrades you can make.
    Really only a few basic things you can enhance - intake, exhaust, efficiency, gearing, and... friction I guess (like weight/chain/tires/bearings etc).
    Carb is responsible for the entire air/fuel intake. Stock nt is NOT king ENGJL-DIOKIT-detail-2019__38111.1554935138.jpg
     
  14. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    Put it in the back of your Subaru.
     
  15. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    Oh, am I late to the game?
     
  16. Skelha

    Skelha New Member

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    66cc - 22mm
    80cc - 24mm
    Find Graham Bell book to learn how port.
    Try to find a good exhaust builder.
     

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