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  1. #1
    dj Burnout's Avatar
    Join Date
    Jun 2012

    Unhappy 1998 Polaris slth bogging down

    1998 Polaris slth bogging down

    I just bought a 1998 Polaris slth 700 cc and figured that if it started up I was good. it start up no problem. then I put it in the water and seddely loss spark in the front cylinder. I test for compression. it has 125 psi in both cylinder.

    well I replaced the ignition system update kit (stator,cdi, coil and spark plug wires) clean the fuel and oil tanks, add new oil and gas. installed new spark plugs. I return to the water to try out it. But it bog down for about 5 to 8 mins. only it get a speeds of 8 - 10 mph at WOT then it take off and can reach speed of 32 - 35 mph until I release the gas or I make a sharp turn. the speed is reduce to 15 - 20 mph.

    I decide to return to the draw board again remove the carb and clean it. return to the water with the same problem. help help help
    Last edited by K447; 02-22-2013 at 08:22 AM.

  2. #2
    Check your fuel lines make sure their ran right, than clean carbs, the one with fuel pump tied to it can come apart in many pieces, there's a screen in between 2 plates in that carbon its probably dirty

  3. #3
    caliburn's Avatar
    Join Date
    Aug 2012
    Sister lakes Mich
    Fuel pump , maybe?

  4. #4
    Click avatar for tech links/info K447's Avatar
    Join Date
    Jul 2007
    near Toronto, Canada
    If you have not yet rebuilt those carburetors with genuine OEM kits, then now is the time to do so.

    See my signature links for more things to check and maintain.

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