Just bought a new KLX250 and because of bad weather didn't test drive one before I bought. after riding it this weekend I am amazed at lack of power, I was going to wait for warranty to be out before modifying but I cant take it only has 60 miles on it and after reading a few threads. I am going to order dyna jet, drill exhaust with 1/2 inch bit, remove airbox cover and put smaller 13t front sprocket on.
Can anyone recommend online place for the front chain wheel?

I don't want to do much more the first year just incase I have a problem that might be a warranty issue.

Thank You,

 

Unless you like pulling the carb on and off I would suggest thinking through all your options before rejetting. It's not the easiest bike to get the carb on and off of. Most replace the stock exhaust with something more robust. Ride it for a while without the lid on and see what you think. It's pretty loud with a lot more vibration. Many opt for a wider snorkel. All of these things will only give you a modest performance increase. You will need a big bore if you want a lot more power. I bought my counter sprocket on eBay for like $15.