Low End Bog on '99KDX 200

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TylerKuKu
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Low End Bog on '99KDX 200

Post by TylerKuKu »

So me and my dad got my first dirtbike, 1999 KDX 200, last August and its been a lot of work to get it to the point it's even at. Anyways I ride at 5000 to 7000 feet in elevation and have a 150 main jet, 45 pilot jet (I think), and the stock needle with the clip in the first position. When I am in first gear with the bike just about to die and hit full throttle there is a lot of hesitation and bogging for a few seconds. Any suggestions on what to change?
There's also an FMF Gnarly Woods and TurbineCore2 silenceron the bike if that makes any difference. Thanks in advance!
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JFortner5
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Re: Low End Bog on '99KDX 200

Post by JFortner5 »

Is the needle clip in the first position from the top or bottom? I'd try a leaner pilot jet at that elevation.
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TylerKuKu
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Re: Low End Bog on '99KDX 200

Post by TylerKuKu »

The clip is in the highest position so that the needle is as low as possible. So like a 43 or lower pilot?
ecojbr
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Re: Low End Bog on '99KDX 200

Post by ecojbr »

I would presume that the 3rd or middle position would clean it up alot.
04 kx220 hybrid
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Julien D
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Re: Low End Bog on '99KDX 200

Post by Julien D »

Bog is lean, blubber/stutter is rich. Raise the needle up and feed it some fuel.
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TylerKuKu
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Re: Low End Bog on '99KDX 200

Post by TylerKuKu »

Oh OK thanks a lot. There is a little sound on deceleration sometimes that I would describe as a sputter, would that be the pilot being too rich?
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