This forum has been super helpful with my kx250f and now I have a 2003 cr125 thats giving me a couple issues.
The bike starts up just fine but once running it has a somewhat rough/fluctuating idle and a "bog" at high rpms. I changed the jetting from 430/30 to 390/37.5 and I set the clip to the 2nd clip down on the needle. When giving it full throttle it kind of bogs towards the high RPMs and almost kind of clears itself out after a second or two if that makes any sense. As far as the idle its never really steady and fluctuates. I just ordered new crank seals for either side which I've heard can be my issue but aside from that where else should I start? I was planning on tearing into the exhaust to make sure it isn't plugged and gummed up and the same with the power valve but I haven't gotten to them yet. Looking for some input first.
