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  1. #1
    Stop Obama Express
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    Question HELP picking flame arrestors for my 96 XP

    My engine and rebuilt carbs are almost here and getting installed next week. I would like a set of flame arrestors but need some help with the following:

    1) Which set do you recommend for best price?

    2) How do you go about adjusting the carbs after installing?
    DO you do it on the hose or in the water?

    Anything else special I need to know... please tell me. If it is not worth the money to increase ratio... tell me too. THANKS guys.


  2. #2
    Moderator RX951's Avatar
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    199xp 96xp mods

    when I had my 1996XP, this is what I ran

    OEM carb adjustment setting
    XP - Low Speed – 1 3/4 +/- 1/4
    High Speed – 0


    1996XP
    Main Jet: 150 Front carb / 152.5 Rear carb
    Pilot Jet: 70 (Stock)
    High Speed Screw:1 turn Mag/1 1/4 turn PTO
    Low Speed Screw: 1 ˝ turn out
    Needle & Seat: 1.5 (Stock)
    Spring: 65 gram (Stock)
    Comments: Aftermarket flame arrestors w/chokes

    If you ever change the prop, Stock is 16/23, I had a 16/24 on my 1996 XP. I was running flame arrestors, rejet kit, primer kit.
    I would remove the carbs, and rejet on a bench. Make sure all the internal filters are clean, o-rings, diaphrams and gaskets replaced if needed. A good digital tach is handy also to set/watch the proper rpms.

    Concord
    my two choices:

    SD-CD-15/23
    SD-CD-16/24 *

    In the X-prop, I would go with the SD-CD-X0 (16.5-23.5)

    As for flame arrestors, I ran the Ocean Pro Vortex Flame Arrestor
    Last edited by RX951; 07-30-2008 at 07:58 PM.

  3. #3
    Stop Obama Express
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    The carbs are freshly rebuilt and practicly brand new. Do you have to rejet when putting on flame arrestors?? I dont want to get that involved.

  4. #4
    Moderator RX951's Avatar
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    1996 XP 96xp carb adjustment setting

    At the minimum, open the high speed adjusters 1 to 1 1/4 turns out. they are closed [0 turns out] from the factory

    The High Speed screw is set at "0" with the plastic cap on it. The Low Speed screw is set at 1 1/2 turns out.

    Also, The low speed adjuster is used in conjunction with the idle stop screw to adjust and maintain idle speed and smoothness. If need be, for setting your idle, experiment turning the low speed adjuster in and out in small increments until a smooth idle is obtained. As the idle stop screw is turned in or out to raise or lower idle speed the low speed mixture is also affected. For clarification, if the idle stop screw is turned out to lower idle speed, this action increases manifold pressure slightly and richens the low speed mixture so that a mixture adjustment may be required. The low speed adjuster is very sensitive and adjustments should be made in small increments only.

    Note: Remember, the low speed adjuster is only for adjusting the idle mixture. If you use the adjuster to help get rid of a low speed hesitation, you will probably find that your engine will load up in no wake zones, or after extended idling.

    Carb Tuning thread
    http://www.greenhulk.net/forums/show...ht=carb+tuning
    1. LOW SPEED ADJUSTER -To adjust a smooth idle
    2. POP-OFF PRESSURE -Just off idle to 1/4 throttle in conjunction with the low
    speed jet.
    3. LOW SPEED JET -Just off idle to 1/3 throttle.
    4. HIGH SPEED JET - 1/3 to 3/4 throttle.
    5. HIGH SPEED ADJUSTER -3/4 to wide open throttle.
    Last edited by RX951; 07-11-2008 at 12:00 PM.

  5. #5
    96XPSS's Avatar
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    Quote Originally Posted by 240witSR View Post
    My engine and rebuilt carbs are almost here and getting installed next week. I would like a set of flame arrestors but need some help with the following:
    1) Which set do you recommend for best price? Price is not worth worrying about...they all cost about the same. Best in Performance? Fly's or Proks...absolutely. I've had R&D, K&N, and Jetinetics...no comparison.

    2) How do you go about adjusting the carbs after installing?
    DO you do it on the hose or in the water? No, you disassemble, rejet, then go water test.

    Anything else special I need to know... please tell me. If it is not worth the money to increase ratio... tell me too. THANKS guys.

    Different flame arrestors require different jetting. If you get the Fly's let me know and I can give you jetting.

  6. #6
    Moderator RX951's Avatar
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    Kinda off topic, but when I went to PROKS from my ocean pros, I drilled the case for an extra pulse line for my carbs so each carb had an independent pump, but in a nutshell, I seen a different throttle response from the PROKS vs. the OP VOrtex. needless to say, I ran the PROKS on my GPR for 5 years

  7. #7
    96XPSS's Avatar
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    Quote Originally Posted by RX951 View Post
    Kinda off topic, but when I went to PROKS from my ocean pros, I drilled the case for an extra pulse line for my carbs so each carb had an independent pump, but in a nutshell, I seen a different throttle response from the PROKS vs. the OP VOrtex. needless to say, I ran the PROKS on my GPR for 5 years
    Yes, there most definitely is a difference isn't there RX?

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