Stalling out
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Thread: Stalling out

  1. #1
    Junior Member Rookie
    Join Date
    Sep 2018

    Stalling out

    Hi, I have a 08 525 I had previously broke a valve spring causing me to do a whole rebuild over winter. Now my problem is that it will stall out randomly. It will run great for maybe 15-20 minutes then randomly die and act as if it’s running out of gas and won’t start back up unless I let it sit for atleast 10 minutes. What would be causing this? Ran great last season before breaking valve a spring

    Quad has
    Ported head
    Stage 3 Webb cam
    Webb valve springs

  2. #2
    Senior Member KTMATVHQ Member
    Join Date
    Nov 2015
    Pull hot start when trying to start it (red knob above choke), bet it fires up. If that happens go down one on your pilot and re-adjust fuel screw. Only jet once up to full operating temp. If that doesn’t work, my next look would be to make sure carb is 100% clean and valves are in spec.


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