125 Pipe compatibility

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Aug 2, 2001
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#1
I have a 1995 KDX 200, bought used. Love the bike, the FMF 035 Rev pipe that came on the bike is a little too revy for the woods I ride. (side note, I bought the bike with 13/51 gears, currently changed to 13/49's so now I feel the need for more torque, the bike doesn't have the bite that my buddy's 99' 220R has with 14/48's) I have a chance to buy a new FMF Gold Series Fatty Pipe - 88-89 KX125 pipe, WILL IT FIT AS A BOLT ON? From reading the forum I take it that our motors are a variation of the 125cc, but not sure what years or how much variation. Also, what other parts will fit our bikes from Kawi's other models?
 
Joined
May 1, 2000
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#3
I would be interested in your pipe if it is a K-35. The number should be stamped on the mounting tab. If you're interested in selling it, send me a message to let me know the condition it is in, and how much you want for it.
Thanks,
Toby S
Motorbike3@aol.com
 
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Nov 21, 2000
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#4
If your pipe is a kg-35 i think it is a torque pipe and not a rev. If this is the case i dont think any other pipe will give more low-end power. I would think that trying to fit another application pipe would be a nightmare and give
disapointing performance. But if the pipe is cheap and you have lots of time,
give it a try and let us know the results.
Steve
 
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Dec 10, 2000
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#5
Even if the pipe had the correct size flange to fit the engine exhaust spigot, and assuming it would bolt up to the KDX frame at all, I doubt that it would run well at all. A 125 pipe is designed for port timing and gas volume/velocity that is totally different than a KDX engine. A 125 revs much higher, has more aggressive porting, probably moves a higher volume of gasses, and is tuned for a much higher rpm range than a KDX. I would bet that it would run awful. Either FMF pipe for a KDX 200 is great. I do think the K 35 pipe is the torque pipe, not the rev pipe, so if the bike feels peaky and soft down low, you might want to have a look at the power-valve. You should have a very torquey power spread, with lots of grunt.
 
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#6
Oops

Correction, its a K-30 Rev pipe, must have been wishful thinking since the K-35 is the pipe I want. Thanks for the responses, guess I'll nix it.