Modding for torque/power on a 2001 RM125

[gmacd]

I own an RM125 and i would like serious noticable power increases.
I'd REALLY like to move power down to low end too, i want more torque, i havent raced yet but the track here doesn't look like an overly "fast track" but rather a technical one consisting of lots of turns and minimal straitaways, so a loss of top end and speed wouldn't bother me... BTW i don't want to do the 144 thing. What about milling or porting the head (Are milling and porting the same thing?) Whats the "mo' everwhere" porting? What pipe would go best with the new porting job to further enhance my new low end?
Thanks alot everyone!!

 

[gmacd]

are there any good sites for the leyhman on the subject of porting so i can educate myself as to the processes involved?

 

[Rich Rohrich]

This should get you started : http://www.ericgorr.com/twostktech/egportweb.html

 

[Roost165]

I have an 03 Rm 125. I put on a combination of a V-force (on low setting) and FMF fatty pipe. These 2 gave me lots of throttle response and very smooth usable power. I did not notice any top end loss but i'm sure i did lose some. Point being this combo was under $300 and gave me what i was looking for and all the work is reversable for a high speed track.