Please help. I have had my 03 KDX 200 for a week and a half and have fouled two plugs in 50 miles. I Both times, I was about 1 minute into a easy "warm up" ride, from a cold motor. While I am very mechanically keen via JetSkis, I'm unfamiliar with the bike world. It is my understanding that these bikes are jetted too rich. At the same time, I'm hesitant to jet it very lean, as I would rather error toward the safe side. It seems to idle fairly well, and pulls great if I'm in the gas hard. The 1/4 throttle position runs a bit rough, though I assume thats the nature of a 2-stroke. The bike is box stock with the exception of 4 3/8" holes I drilled into the air box. If I swithed to a BR7ES or a BR9ES would that help, and if so, what effect on operating temps would it have? If I must rejet, what is a safe starting point? I'm taking my first big trail ride in the morning, so if I don't get to check the replies, it's because I'm still pushing my new bike out of the woods.
Thanks in advance for any help.
Thanks in advance for any help.