Im getting ready to sell my 2004 crf250r. It has trouble trying to start. Takes like 30-50 kicks. Im not the kinda guy who sells a crap bike to someone, because I bought my first bike used because I didnt have the money for a new one and i was very lucky the bike ran strong for 2 years. Now i want to sell it but i cant if it wont start. I just had new valves put in a new cylinder head, shims, valve springs the whole deal.The bike rode good for about 15 hours. The one thing i noticed is the bike had no compression. the valves have about 15 hours on them. Could they need a revalve? But would it really have that much loss in compression becuase the valves are out of spec?