dezracer, 25 miles and 3 hours is still pretty bad milage no matter the condition. But, specs or not I am at a 38 pilot and a 148 main jet and don't even remember the needle. But, if you work with the jetting, you'd be amazed at the diffrence in power.. Hell I thought my KX was pretty d**n fast , and every time I made a jetting change thought that was it. But, about a year later I'm out and about.