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  1. #1
    XLTNoob
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    Does someone have a guide for rejetting carbs?

    I'm debating on removing my accellerator pump, curious what all is involved, mabye I can do it without throwing a bunch more money at the ski.

    I've got jetting drill bits, not sure that that's what's intended tho.


  2. #2
    XLTNoob
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    Hmm. Found a site:
    (Courtesy of http://www.cajundude.com/carbrejet.htm )

    It says that it's a rejetting guide, but says nothing about changing the actual JETS, just the mixture screws.

  3. #3
    quadzilla's Avatar
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    Cool ??????????????

    Hey Fuxxy..

    That is a good informative site..

    Also section 9) the second photograph is of the hi and low jets..

    The smaller of the two brass screwheads being the low jet the other brass screwhead is the high jet..

    To change them is fairly simple.. just make sure to use a "Good fitting screwdriver"..!!

    The last thing you want to do is screw them up or worst still strip the heads off..!!
    That would be a disaster...

    Another good place to look is here:....
    http://www.hydrotoys.com/gpr/tuners/...orAssembly.pdf

    This a fairly simple job for someone who is patient and mythodical...
    So basically "Take you time and do it in order"

    Gerry

  4. #4
    XLTNoob
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    I have no problem taking apart the carbs and rebuilding them.
    I just don't know exactly what you guys are referring to when you say I need to rejet my carb when disabling the accellerator pump.

    To me, the jets are the metered inserts under the cover plate on the diaphragm side of the carb.

    Every site I look at refers to "rejetting" as replacing the low and high speed mixture screws, and they neglect to mention anything about the metered inserts inside the carb.

    Just looking to clear this up.

  5. #5
    mrbtd's Avatar
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    The jets look like this. Rejetting while you are where you are is a good idea. You just need to add open fa's -

    The screws on the top and bottom are opening the flow for the jets. I guess a good way to think of it is the jets are the stream of fuel and the screws are what limits it.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  6. #6
    XLTNoob
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    So I'm supposed to replace those with another size?

    And get some open air Flame Arrestors.

    And this has nothing to do with the mixture screws.

  7. #7
    mrbtd's Avatar
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    Yep

  8. #8
    XLTNoob
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    My uncle deals with holly carbs all the time, and has a jetting drill kit.

    Mabye I can drill them rather than buying new.

  9. #9
    quadzilla's Avatar
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    Question ?????????????

    Bad Idea Fuxxy...

    Yes it can be done and quite easily too..

    But for the price of the jets.. its just not worth the risk of getting it Wrong..!!

    IF you want to delete the accerator pump and go to aftermarket F/A's

    Then you're looking at about $80-$130 plus the cost of whatever F/A's you want to use..

    It breaks down like this:...

    Low jets x3 110's.............About $2-$3 each
    High jets x3 120's or 125's (125's being the safer option) Also $2-$3 each
    1.5 needle and seats x3....... Around $15 a pop
    95 gram springs x3....... About $1-$2 each

    SO all of the above parts will come in about $80 or so..??

    If you want to do it right then you really should add some t-handle adjusters...
    A few dollars could be saved by only doing the lows.. but this is false economy..

    SO again add around $50 to the cost for the t-handles "hi's AND low's"

    After this its down to the F/A's.. your personal preference here..
    Anything from $30-$40 used to around $150ish new

    This little endevour could end up costing in the region of $300 to do it right..

    The alternitive is to try source a set of carbs pre modded the sell your stockers..

    This way could end up being cheapest in the long run..

    After all this if you want to keep the ski stock but only delete the acc pump...

    Then someone on here will be able to recomend some suitable jetting for that option..

    Good luck whatever you decide..

    Gerry

  10. #10
    XLTNoob
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    Oh, okay I thought it was just rejetting, I didn't realize you had to replace some springs, etc.

    Since you put it that way, i think I'll order the kit..

    Guess I won't be breaking in my ski this weekend after all.

    I'm still fighting that highspeed adjuster on my stock carb.

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