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S&S or Mikuni

Discussion in 'Motorcycle Tech Talk' started by Derek02deuce, Jun 8, 2010.

  1. Derek02deuce

    Derek02deuce New Member

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    Im changing carbs on my 02 deuce and was wondering if I can get some of ya'll's opinion on mikuni or s&s carbs. Bike is stock with the exception of a forcewinder intake and v&h bigshots. All opinions will be appreciated:D
  2. cowboy

    cowboy Moderator Staff Member

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    I here there both good carbs ,But have never tryed the Mikuni , tryed a S&S on the old shovle years ago But took it off & went back the bendex made the bike run better
  3. hotroadking

    hotroadking Super Moderator Staff Member

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    Just curious why you want to change
    the CV40 will handle up to at least 100/100 easy..

    If you are looking for power there are better places to drop $500
  4. ReeseSS

    ReeseSS New Member

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    I'm with HRK, No reason not to run your CV. (properly tuned and jetted)
  5. HarleysLR

    HarleysLR Active Member

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    i've tried the S&S and Mikuni. Both are good but neither are as good as a finely tuned CV carb. You'll loose MPG's going with either one and with a basicly stock motor you'll be wasting fuel. over the years i've thrown a lot of money at going faster or building bigger motors, there is always some one faster or bigger. If all you want is the air cleaner cover they make adapters to make them fit Cv's.
  6. whacker

    whacker Active Member

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    If I were you I would get Ken's carb kit along with the "V" Ductor...My 75 Sportty runs real good with it......
  7. chucktx

    chucktx Moderator Staff Member

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    i have ran both.....and they both preformed good, but, the cv will out preform them both....as for cool looks, the s&s when polished or chromed is the cats meow~!!!!
  8. Derek02deuce

    Derek02deuce New Member

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    i am going to keep the cv carb on it. but try to find someone that can tune it right. dealership cant even get it right.. hmmm... it does have the cv performance deluxe tuner kit installed but is a mother to start back up when fully warmed up. the jets are 50/195 and richer than hell. the 48 slow jet i had in alwys wanted to cough and shut off (not cool, especially in traffic). im not good at tuning it so thats why i ask questions. float level is within specs, new gaskets on intake and carb throat body, brand new enrichener valve.. please help me out here. thanks to all who have helped me so far
  9. chucktx

    chucktx Moderator Staff Member

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    put the 48 back in and adjust the air screw........lightly seat it then back out 2.5 turns......then ride it to get it warm, then adjust it......no more than 1/8th turn at a time then ride some more,,,,,adj, more if needed.........let us know......adjusting a cv is not rocket science.........
  10. HarleysLR

    HarleysLR Active Member

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    Sometime you have to set the idle (cable adjustment screw) a little high to keep it at a about 1,000 rpm’s in order to adjust the air screw. Lots of people forget to do this and try to make all the correct with just the air screw. JMO
  11. Derek02deuce

    Derek02deuce New Member

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    ok will definately put the 48 back in. thanks. hopefully this weather here breaks so i can take the bike out
  12. cowboy

    cowboy Moderator Staff Member

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    Just take your time & do as above said , this does take a little time to get it right but you can do it :D
  13. Tomflhrci98

    Tomflhrci98 Active Member

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    I had similar problems - hard starting, coughing on slight throttle movement, rough idle. I did everything they told me with the jets and tuning. I finally installed the Dynatech single fire ignition and coil and it solved all those problems and got smoother driveability around town. I really think that single fire is the way to go for these problems.
  14. hotroadking

    hotroadking Super Moderator Staff Member

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    That 02 already has the single fire it's a Twinkie.

    I didn't see any other mods than a stage 1 and a 50 sound
    way to rich for a stock stage 1

    Before adjusting get it warmed up, and as said
    set the idle at 1000 (don't set it low for that old loping Idle
    that is bad for oil pressure at idle)

    Open the throttle just a bit and set it with
    the throttle lock screw at 1500

    Then set the air mix screw, after you put the 48 back in..
  15. HarleysLR

    HarleysLR Active Member

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    I agree.
  16. johnnyfxr1993

    johnnyfxr1993 New Member

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    need to rebuilt my 39mm front end is there alot of tension on the springs when i take the caps off
  17. cowboy

    cowboy Moderator Staff Member

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    johnnyfxr yes there is , put the bike on a kack to lift the front wheel just have it touching the ground , this will release most of the presure & keep the front end from falling off
  18. JohnnyBiker

    JohnnyBiker Well-Known Member

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    This is one of the reasons as to why I was looking at the S&S. It look purrrtyyy!!:D After everyones input and a little digging, I found that I want the CV and I will just send it to Kentucky and get it chromed, and for cheeper than what a new one will cost me. :cool:
  19. hotroadking

    hotroadking Super Moderator Staff Member

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    BTW there is nothing wrong with the Super E carb or the Mickey Rooney 42 for an HD, but the carb won't make a huge difference in power on a stock or stage 1 engine.

    Any more so than a properly tuned CV.. and JMO the CV is smoother across the power band.
  20. Ramona

    Ramona New Member

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    CV will do the job for you......can be massaged to your needs..

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