2005 yz450f. Factory stock except the chain/sprockets, tires, and full WB exhaust. The motor has never been apart as far as I can tell. My question is about the amount of compression at the kickstarter, my other 450 (rmz 2007) seemed to have alot more. I can start it cold with flip flops on first or second kick every time and it runs perfect. The bike appears to have low hours and well taken care of. Sould I be concerned?