Resonator chamber spacer

Discussion specific to the 1995 - 2006 KDX200 (H Series) and 1995 - 2005 KDX220R (A Series) models sold in the USA
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C George
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Resonator chamber spacer

Post by C George »

Has anybody ever tried one of these ?

It's a 3/16 to 1/4" spacer that increases the size of the resonator.

If I'm correct , I believe the resonator itself makes the exhaust
tract slightly longer at low rpm's.

I'd like to try one on the 200.
05 KDX-220R / 06 KDX-225R / Maxima 927 / Millenium Tech / Ron Black / PC , FMF / Many 220 engine mods / 40 + yrs. of riding dirt bikes 🤟🤟
KDXrider1989
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Re: Resonator chamber spacer

Post by KDXrider1989 »

If you mean resonator as in expansion chamber or header pipe, then yes you will notice a little more low-end grunt at the expense of a few hundred rpm's on top end pull. theres many threads already on here about it
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C George
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Re: Resonator chamber spacer

Post by C George »

The resonator chamber is on the left side of the engine cylinder. a rectangular box roughly 1.5 x 3.0"
The exhaust goes in there when the aux. ports are closed.
05 KDX-220R / 06 KDX-225R / Maxima 927 / Millenium Tech / Ron Black / PC , FMF / Many 220 engine mods / 40 + yrs. of riding dirt bikes 🤟🤟
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Julien D
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Re: Resonator chamber spacer

Post by Julien D »

Yes, someone used to make one at some point, but I haven't seen or heard of one in a while. And I believe you are correct, should add low end power.
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