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Hick up on CV carb HELP

Discussion in 'Motorcycle Tech Talk' started by mckittrick87, Nov 12, 2009.

  1. mckittrick87

    mckittrick87 New Member

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    Alright this is where I sit. Checked for air leaks with carb cleaner, was going to do it again but I used to all the last time no leaks. I went and stuck a 46 in it instead of a 48 and I still have the 195 for main. new plugs after 5-10 mins...I quit because I could just tell the bike was hotter then normal....new plugs still looked....new, no coloring what so ever!
  2. mckittrick87

    mckittrick87 New Member

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    ohhhh and the air fuel mix I played with I had soem idel change in between 3 1/4 and 1 1/2-3/4 set at lil over 3 no real hick ups on gagging the throttle, letting it sit and idel all of a sudden hick up and die after a period of time
  3. cowboy

    cowboy Moderator Staff Member

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    sound's like it's suckin air somewhere , don't have my book here but I think your out a bit on your screws,
  4. chucktx

    chucktx Moderator Staff Member

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    i would pull the carb and start over. make sure all passage ways are clean, jets clean, pull em and look through them....float setting, ect......make sure the rubber seal is sealing, use a very small about of grease on the inside of the rubber. it makes installing much easier. check the intake gaskets while the carb is off. when installing the intake, torque it, dont guess it. guessing can make it not seat properly........then fine tune it. get the idle set then do your adjusting. make sure the bike is at operating temp. about 10 miles of riding or so......not just idling in the driveway. make sure you have a good flow out of the petcock to the carb. there is something small that is being over looked...just need to find it!!! let us know..........
  5. HarleysLR

    HarleysLR Active Member

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    Don’t remember who posted this schematic, but here it is again. verify all the parts in the correct place.

    Attached Files:

  6. mckittrick87

    mckittrick87 New Member

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    float setting????...i was thinking the same thing about pulling it lol ummm i didnt use the new gasket cuz i didnt pull the breather off, but i know the old gasket is on. what should i do about the jetting.........and no color on plugs, did it run long enough
  7. chucktx

    chucktx Moderator Staff Member

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    dont know if it ran long enough or not........all gaskets should be new. you are trying to correct a problem, and if you use used/2nd hand parts, you may never find it. start over from square one, using new parts and follow the instructions supplied with ken's kit.....building a cv carb is not rocket science like the older carbs. a bit of time and care and you should have a screamer!! take your time building it....when i hurry, i miss/forget stuff then have to start over......let us know.....
  8. Lucifer

    Lucifer Well-Known Member

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    When the bike quit running was it like it ran out of gas?? Here's a link to show you about adjusting the float.
    Factory Pro Float Height Tool

    Either the float level is too low or you're not getting good fuel flow to the carb.
  9. mckittrick87

    mckittrick87 New Member

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    thanks for the link im going to check that out ...talking about gitting in a hurry i had my carb off everything put back on and ridding in 2 hours....I DID NOT tighten 3 of the 4 screws on the cap for the slide diaphram...see what gitting in a hurry is good for i started tearing in to it the screw that holds the bracket for the cables that screw was sticking straight up...im going to replace the gasket and give that a shot with the jetting im at now
  10. HarleysLR

    HarleysLR Active Member

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    At this point you have been given good advise, listen to what chucktx has told you and start from there. Take the carb off bike pour gas out take into the kitchen table, get out a beer, coke or what ever. And start over, take completely apart clean every little piece and then put it back together with new parts, make sure everything is tight. Do not but the air filter system on until the carb is secure on the motor.
    I am still trying to figure out how you got the carb apart to do what you have done with out taken the breather off. I mean I know how, but why would you do it that way?
  11. Lucifer

    Lucifer Well-Known Member

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    If when setting the idle mix there was a change in idle at 3-1/4 and again at 1-3/4 you split the difference....the mix screw should be set at 2-1/2 turns out.

    Once you verify the float level is set right and you have good fuel flow to the carb, gas cap is venting, petcock is not restricted by crud in the tank,fuel line is in good condition,set the idle mixture, out til stumble,in til stumble, split the dif. You should be close to gitten er done.
    keep us posted.:devil:
  12. mckittrick87

    mckittrick87 New Member

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    ok thanks guys, man im about 2 secs from just taking it and having it dyno, 180 bucks. dosent work for me this time I give up. How important is it to set my float? I need caliper
  13. mckittrick87

    mckittrick87 New Member

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    well i went out pulled the carb left everythign hooked up tightend the cap put it at 2 1/2 turns got it warmned up went for a ride 1 hick up when i first left none after. plugs were white on the very tips and ....dark brown on the white i finally got some where. i have the arlen ness with the back up plate..i can git to my vent screws without pulling the cover and breather..first time around i sprayed everything thing inside out with carb cleaner when i installed the kit...i would still like to do somethign with slide and im working on gitting a set of heads ported polished, milled , over sized valves ect...so carb may have to be redone !
  14. chucktx

    chucktx Moderator Staff Member

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    are you happy with the way it is running at this stage?????
  15. mckittrick87

    mckittrick87 New Member

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    oh yeah i just wanted to git the hick up out of it..and see the correct coloring in the plug .....im curious to go out and run it now, see if theres any diffrence...........THANKS GUYS
  16. cowboy

    cowboy Moderator Staff Member

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    sound's like you on the right track now , after I use carb cleaner I wate a few days & spray some lube on any parts that move on the out side just no WD40 , & just a few drops carb cleaner seems to dry up , & lubed things seem to move easer :D

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