Ok so i have a 01 yz250f, The bike is giving me hard times starting it. It wouldnt kick over at all or roll start so we put a new plug in it ( CR8E PLUG ) it fired right up. But now 1 week has gone by and about 5-6 hours of ridding and the same thing is going on. The weird thing is i just started it yesterday and fired up second kick. I go out to start it today and it will not start. Any ideas?