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  1. #1

    How much do I need to up the jetting (pics)

    As most of you probably know by now, I have a 1200 slx running premix.

    Last summer it was always running lean, but I continued to use it. Last fall I bought a new carb and put it on. After the first few times out this spring I noticed that it was still lean.

    Last weeked I opened up the new carb and did a leakdown test. The carb looked great and the leakdown test went well. While I had the carb opened I upped the jetting a little with some old jets I had laying around. I believe it is now at 140 145 142 (mag, cen, pto).

    These pics were taken after towing another ski in for a pretty lengthy distance, so I don't know how much that would effect it. Either way, it is clear that the CEN is running very lean (as it was with the last carb.) I also checked the reeds, they're in good shape.

    Heres the pics:

    MAG:






    CEN:






    PTO:











  2. #2
    It almost seems like the wash is developing in layers. There is no distinct wash, but you can see areas of light and dark. I never really see that when anyone else posts pics of their wash.

  3. #3
    la90043's Avatar
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    wow they look marbelized/glazed.

    will they clean up with a moist rag of gasoline huh?

    do not your carb have low or high speed adjusting screws huh?

  4. #4
    Quote Originally Posted by la90043 View Post
    wow they look marbelized/glazed.

    will they clean up with a moist rag of gasoline huh?

    do not your carb have low or high speed adjusting screws huh?

    The carb has low screws, no highs.

  5. #5
    bowsniper's Avatar
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    from other pitures ive seen, they look rich (mag) ,on the lean side(cen) ,rich(pto) to me.

    what kind of carb are you talking about? you bought 1 carb with no high setting on the jets? not sure what your saying..

  6. #6
    Quote Originally Posted by bowsniper View Post
    from other pitures ive seen, they look rich (mag) ,on the lean side(cen) ,rich(pto) to me.

    what kind of carb are you talking about? you bought 1 carb with no high setting on the jets? not sure what your saying..
    I have the kehlien (or however you spell it) carb that comes with the domestics. It has low, mid, and high jets, but only low speed adjustment screws.

  7. #7
    Bump...I'm gonna order jets. Any other input?

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