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Still sick sporty

Discussion in 'CVP Stage 1 Tuners Kit' started by motorheadtilldead, Jul 4, 2011.

  1. motorheadtilldead

    motorheadtilldead New Member

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    Alright johnny was able to sneak out and count teeth and looks like I got 61. :)
  2. kenfuzed

    kenfuzed Administrator Staff Member

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    Sorry I didn't connect this message thread with another. I'll answer your questions and try to diagnose the problem from this thread.

    If the bike started life as a 883 and was converted to a 1200 chances are the sprocket is still the same. Only way to tell that I can think of is to pull one of the heads and measure the cylinder diameter. A 883 has a cylinder diameter of 3" and a 1200 is 3-1/2". Using the markings on the cylinder base is not accurate since someone could have bored the original 883 cylinders.

    It's been mentioned before and if you haven't already checked, double check that the accelerator pump nozzle is spraying when twisting the throttle.

    Check that the vacuum hose from the top/back of the carb (brass fitting) is connected to the VOES. When applying vacuum to the VOES with a hand vacuum pump (found at any autoparts store) it should hold when applying vacuum, not leak down.

    If you have one of the carbs that has a second black-plastic elbow on the same side as the fuel inlet (looks the same, only smaller) it should either go to an emissions canister or be plugged. This is not a vacuum line.

    When the bike stalls does this occur both with the enricher (choke) on OR off?

    Check the picture below, it shows the install order of the emulsion tube and needle jet (aka collar). This stainless steel nozzle must be in place and the largest open end needs to face up toward the needle. Having this piece upside down or missing will cause problems.
  3. motorheadtilldead

    motorheadtilldead New Member

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    seemed like bike revved out better with choke on last time I tried but was with 44 jet in now have 45 in. I'm certain collar is in correctly, seemed like it only went in one way. There is no seperate elbow on carb and I'm positive vacuum line is connected but will consider going to pick up tester if it turns out pump not spraying. Thanx for advice on displacement, I was pretty sure that's the only way to be certain, other than having rode both, I haven't. Going to check pump now.
  4. motorheadtilldead

    motorheadtilldead New Member

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    Accelerator pump is working.
  5. motorheadtilldead

    motorheadtilldead New Member

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    Again tried to tune. still falls on face at about quarter throttle if you twist and hold. If I rev repeatedly it will wind up but not perfectly and when I'm rolling out there is a slight boost in rpms. Does this mean I'm jetted to lean? If I just go ahead and get jets for 1200 kit are they compatible with the other components that came with the kit for 883¿
  6. kenfuzed

    kenfuzed Administrator Staff Member

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    The ease in which that part goes in can be deceiving. Installing the wrong way is actually easier than the right way. Installing in the correct direction is VERY tight and sometimes can seem like it is being installed wrong. If it won't fall into place on it's own you have to help guide it with a pick (or nail, or old needle) since the clearance is extremely tight. The flat end with the smaller hole mates against the emulsion tube, the wider open end faces up into the carb throat. When installed you should be able to see the end of the collar sticking up into the carb throat.

    The jets for a 1200 (and all CV carbs) are compatible. Shoot me a private message with your email address so I can look up your original order and I'll gladly send you the correct jets.
  7. motorheadtilldead

    motorheadtilldead New Member

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    Excellent I'll do that! Also I am looking at collar and do see it sticking up into carb throat.
  8. motorheadtilldead

    motorheadtilldead New Member

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    Also used carb cleaner to check for vacuum leaks and found none. Pulled choke out and didn't seem to help or hinder when trying to rev up.
  9. kenfuzed

    kenfuzed Administrator Staff Member

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    Just thought I'd post these pictures here in case anyone following along wants to see the correct orientation of the Needle Jet (nozzle).

    Attached Files:

  10. motorheadtilldead

    motorheadtilldead New Member

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    Did you get my pm with email address ?
  11. JohnnyBiker

    JohnnyBiker Well-Known Member

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    Absolutely good point that yes someone could have changed that, but at least it gives him a starting point. If this has been done, it could contribute to his issues of bad acceleration that he is having. (Engine lag).
  12. motorheadtilldead

    motorheadtilldead New Member

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    Latest horse s!*t update... Got 46/180 jets installed (bout twenty minutes after I got em) and still the b¡*¢h won't run! Can get it closer than before to tuned right but still can't hit a definite sweet spot when adjusting. Take her out on road and she gives up! Brought it back in and did vacuum leak check and think mani gaskets are leaking! After I already replaced:/ checked plugs and one running richer than other so pretty sure there is a prob there. Tearing it all down again and going over EVERYTHING! Considering pulling top end to confirm bore but skeptical about whether I'll ruin the gasket and how much it will be to replace. Not to mention can you buy individually? Bout to lose it sporty owner.
  13. JohnnyBiker

    JohnnyBiker Well-Known Member

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    Is this thing acting like this from off idle through the power band or just when you are rolling on the throttle hard??? Pulling the heads to confirm is a good idea...
  14. Lucifer

    Lucifer Well-Known Member

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    Did you check the spark on the cylinder that's overly rich??(should be sharp bright blue spark) Don't want to get you chasing in circles,but I don't think you should have as tough a time dialing in the CV as you're having....wouldn't hurt to verify your plug wires and coil are good...if they check out I'd then look at the enrichener cable end....if the little rubber O ring on the end of the cable is recessed it won't function right and be allowing extra fuel in(choke would be partially on all the time)
  15. motorheadtilldead

    motorheadtilldead New Member

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    Doesn't matter how I come onto throttle once I'm on road as soon as I twist it, it wants to die. I plan to check coil to be sure I have proper spark. The most frustrating part is the damn bike ran fine before I changed the accelerator pump! Will also check choke although pretty sure I'm lean rather than rich since
    when it won't run pulling the choke makes it run good enough to ride it the one block back to the house:/
  16. motorheadtilldead

    motorheadtilldead New Member

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    just tore it all down and put back together, still wont effin run!:gah: run outta ideas, patience, and motivation. taking it in to get fixed so i can ride the bitch! thanx for ur help fellas. ill be sure to let u know the damages.

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