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  1. #1

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    '99 1050 carbs vs. '00 slx carbs

    Got a '99 1050......engine turned into a 1200, and is ported and running 92 oct. heads.


    Do both these skis use the same carbs?
    And, also, how about jetting specs for a '00 slx


    Jetting we have that came out of the 1050 engine is as follows.

    MAG CTR PTO
    main 140 140 135
    mid 35 35 35
    pilot 65 65 65


    The jetting we were recommended to run with the engine (now being a 1200) Is the same with exception of running a 142 main in the CTR carb.

    Just seems odd to go fatter on the CTR and nowhere else.

    If they both use the same carbs, I will want to try 1200 jetting

    Thanks guys!
    RedlineR6


  2. #2

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    Also, owner is wanting to run 3 pissers instead of single water rail.

    Anyone done this with a 1200, and what did you restrict to?

    Can't remember if i've asked that before on a 1200 engine or not.

  3. #3

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  4. #4
    Rasta Mon Condoms We Be Jammin!!!!! TxVirageTx's Avatar
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    jetting

    ported motor???stock 00 1200 jetting is 70 lows,42 mids,140,142,135 mains.01 1200 jetting is 65 lows,40 mids,140,142,135.running pissers.the pto cylinder has an extra water supply line to it.the pto will get a lot of water and run much cooler than the other two.always wonder if you could juct block off the pto extra supply line and have equal temps that way,i'd go 142 across the board then,i should have most of the jets your looking for

  5. #5

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    Quote Originally Posted by TxPro1200 View Post
    ported motor???stock 00 1200 jetting is 70 lows,42 mids,140,142,135 mains.01 1200 jetting is 65 lows,40 mids,140,142,135.running pissers.the pto cylinder has an extra water supply line to it.the pto will get a lot of water and run much cooler than the other two.always wonder if you could juct block off the pto extra supply line and have equal temps that way,i'd go 142 across the board then,i should have most of the jets your looking for

    So we're gonna be lean on bottom and mid aren't we? Will these two jets affect the top end like they would on Mikunis?

    Edit: Forgot about porting too, prob gonna be lean all the way around. They are 1050 cylinders ported, and were sleeved for 1200. Exhaust is at 194, and transfers are at 124 with 35degree blow down. That's all i know, and have no idea what it looks like in there, or what stock porting specs are.
    Last edited by RedlineR6; 08-28-2008 at 11:47 AM.

  6. #6
    Legend in my own mind Sirhc7897's Avatar
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    What extra supply line are you talking about? On the 1200 non FI motors there's only one nipple on the rear of the exhaust manifold.....

    Anyways, to answer your question about the individual pissers:
    -I did it on my 1200 and still run it that way. Just tap the heads for 3/8" ID brass fittings and run your lines. If you want to restrict it down on the rear cylinders to force more water to the front I'd say tap those 2 for 1/4" fittings and tap the from for a 3/8" fitting (or even just tap the rear cylinder). Should be all the restriction you'll ever need. No matter which route you go you will be impressed to see just how much water moves through that motor...

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