Would a new 2003 KX 125 engine fit in a 2004 Cr 125 Frame

shiftless
Edited Date/Time 1/26/2012 11:49pm
I can pic up a brand new one for 450.00 a guy bought one 4 years ago for a kart he never built . It hasn't been modified for a kart so it is all stock.
|
tobz173
Profile picture for user tobz173
Posts
81
Joined
4/1/2008
Location
USA
tobz173 3/12/2008 11:23pm
3/12/2008 11:23pm Edited Date/Time 4/16/2016 6:22pm
I'd put money on "no".
teggers
Profile picture for user teggers
Posts
3701
Joined
8/15/2006
Location
Winter Park, FL, USA
teggers 3/13/2008 12:00am
3/13/2008 12:00am
I'm between a Salad and a Bean Burrito, and I couldn't help clicking on this one. Who knows? I might have learnt something cool tonight.

Now.... if you can stick a KX250F into CR125 frame....that would be cool. Lundy's did something like that when the original four stokes came out.
davis224
Profile picture for user davis224
Posts
7491
Joined
8/15/2006
Location
Cornland, IL, USA
Fantasy
173rd
davis224 3/13/2008 3:50am
3/13/2008 3:50am Edited Date/Time 4/16/2016 6:22pm
I"m sure you could MAKE it fit, but it ain't gonna just pop in there as is.
Rim Lock
Profile picture for user Rim Lock
Posts
713
Joined
4/1/2008
Location
Nikiski, USA
Rim Lock 3/13/2008 4:44am
3/13/2008 4:44am
Factories spend thousands of dollars in frame geometry R&D to get their motor in the just the right spot.

Quit being a cheap skate Tom and buy a new freaking bike. LOL.

B

The Shop

See All »
mxrose3
Profile picture for user mxrose3
Posts
2354
Joined
8/17/2006
Location
Delmar, DE, USA
mxrose3 3/13/2008 6:31am
3/13/2008 6:31am Edited Date/Time 4/16/2016 6:22pm
[quote="Rim Lock":3177cvmp]Factories spend thousands of dollars in frame geometry R&D to get their motor in the just the right spot.

Quit being a cheap skate Tom and buy a new freaking bike. LOL.

B[/quote:3177cvmp]

With the weight of a 125 motor, I doubt that would have much effect at all.
The biggest thing would be to make sure the countershaft sprocket lines up with the rear sprocket correctly, the exhaust would fit, and the carb-to-airbox joint would fit. My bet, is not without a lot of modification.
I stuffed a 04' YZ250 motor into a 04' YZ125 frame with some cutting and welding. I'm still trying to determine if it handles better or not...
ThePipe
Profile picture for user ThePipe
Posts
1836
Joined
8/2/2006
Location
Hell WI pop 1, WI, USA
ThePipe 3/13/2008 7:39am
3/13/2008 7:39am
Got me
One of my pals built it.
That arm on the Left with the Bar pad is the shifter.
mung_and_drool 3/13/2008 8:30am
3/13/2008 8:30am Edited Date/Time 4/16/2016 6:22pm
[quote="BMR179":3qlptc5g]LOL! Does that thing have a "scrub" brake?[/quote:3qlptc5g]
Yes. See that chrome bar in front of the engine? It doubles as a brake.
AJ
Profile picture for user AJ
Posts
933
Joined
4/1/2008
Location
Lowell, IN, USA
AJ 3/13/2008 9:25am
3/13/2008 9:25am Edited Date/Time 4/16/2016 6:22pm
since at one time i put CR500 engines in 04 CR125 frames-
(2004 CR500AF Limited edition)


the kx125 engine doesnt seem all that challenging <img class= " title="Wink">

Post a reply to: Would a new 2003 KX 125 engine fit in a 2004 Cr 125 Frame