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Thread: 97 slt 700

  1. #1
    thehawk's Avatar
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    97 slt 700

    My son has a 97 slt 700 and wants to know what he can do to make it faster.
    It is stock right now. I have a 2004 mx150, which i love.
    thanks
    Jim


  2. #2
    Most reasonable would be to sell it and buy one with a bigger motor and more hp.

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    casey67's Avatar
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    Hi Jim,I've been messing around with a 96 SL700 ( smaller/lighter 2 seater)
    I found I could use a bigger impeller, I'm using a Skat Trak 15/20 ( with higher compression heads and larger carbs and long style jet pump) It runs 53mph [email protected] 6300 rpm.With a SLT,I think the highest you should go is 13/19. And of cource you need to watch the piston wash,especially with more load on engine,so you do not burn up a piston.This is just my opion,and I'm pretty sure it will need carb adjustments with a prop change.

    My impression is the biggest problem with the 96 & 97 700 is it runs at 6350 RPM,compared to 6700 RPM for 98-2001 models.I think the difference is either the cylinders or exhaust,both of which I will be testing as soon as it warms up ,I'll post my results.

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    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by casey67 View Post
    ...the 96 & 97 700 is it runs at 6350 RPM, compared to 6700 RPM for 98-2001 models. I think the difference is either the cylinders or exhaust...
    Would that be true with both the original and the Ignition Update Kit CDI ?

    According to the Polaris Parts cross reference, the same 5131081 cylinder was used 1996-1997 (all twin cylinder models), and on the 1998 (SLXH and International SLTX only)

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    casey67's Avatar
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    Quote Originally Posted by K447 View Post
    Would that be true with both the original and the Ignition Update Kit CDI ?

    Even the update kit had 2 CDI's,seperate CDI for the 96-97 SL & SLT.
    I tried an original style CDI from a 6700 rpm application,still just 6350. I don't think it is in the CDI. Although I will be running the updated CDI this summer.

    According to the Polaris Parts cross reference, the same 5131081 cylinder was used 1996-1997 (all twin cylinder models), Except Hurricane , and on the 1998 (SLXH and International SLTX only)
    That's what makes me think the additional RPM's are in the exhaust.
    I have some 3021009 cylinders laying around and will try them also.

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