Hello all....new to this forum...i have a problem with my 2000 kx 250...i just had the bike tuned up from front to back. It started and ran fine a few times. Then it wouldnt kick over when started. I get no sound whatsoever out of the bike when trying to start it. Is it the crank, starter, carb, plugs, etc.? Any ideas? I dont know automechanics that well so bear with me.