I am the proud new owner of an 02 KDX 200 and was wondering about the break in period. While reading the manual it said for the first 12 miles or 1 hr to ride the bike w/ no hard acceleration and in 10 minute intervals then drain the coolant, remove cylinder head, cylinder/piston and inspect and on and on....can I do damage to my bike if I don't follow these guidelines.
I never did. I suggest your do several heat/cool cycles. Start it up and let it run until it gets nice and warm, rap the throttle a few times to keep it running, but not holding it wide open. Let it cool completely until it feels cold. Then do that again. Next ride it gently for about 30 minutes and then let it cool down again. After that go ahead and ride it but try to get a full tank through it before revving it hard and holding it wide open. If after each ride it it cools that will help to contract the piston and rings io they they seat correctly and it will run for a long time-2000 miles!