2001 kx125 top speed

[lt250rqaud87]

hi i was wondering if any1 knows how fast a 2001 kx125 goes? it has pro circuit fully exhaust system, jetting,carbon fiber reeds, k&n air filter and i run high octane unleaded gas with amsoil 2stroke oil 50:1 if u could help me out please reply thank u,


jessee stevens

[400eXr1d3rZ]

I don't know the speed but 50:1 sounds like a high ratio, why did you choose that ratio?

[ZeroLogic]

Around 5,000 mph.

[Kickstarts-suck]

depends on what color powerband

[Regular_Joe]

50:1 is the 2-stroke gas mix ratio ....

[DVXracer]

Take the plastics, tires, and exhaust off and you'll be hitting somewhere around 516.3mph

[Regular_Joe]

I would guess 60-65 mph or so. You can probably find much more info on thumpertalk.com instead of here. That is a dedicated dirtbike site vs this is a dedicated atv site.

[Shift_450R]

50:1 sounds lean but that could be what your bike is jetted for. do a plug chop to kinda get a see if your lean or rich. And my yz125 in 6th will go about 66-70mph. I passed a car on the highway with mine so it had to of been about 65 atleast

[400EXtreme]

my 125 was alot faster than my 400 and 400s do like 68 so im thinkin in the 70s somewhere.

[400eXr1d3rZ]

Originally posted by Regular_Joe
50:1 is the 2-stroke gas mix ratio ....

I know what it is, but why did you chose to mix that gas/oil ratio instead of 32:1 or 36:1...I always found 36:1 to be my perfect mixture, 50:1 seems like you're beggning for a seized motor.