Ok I have a 99 yz400f. I just replaced the topend and all the gaskets due to a blown head gasket. Any way, I got it all cleaned up and put back together and in having a really hard time starting the bike. I mean I know that they are hard to start in general but it just seems like its extra difficult. Could it be because i coated the piston and cylinder with oil. I got it so fire up for about 2 seconds and then it died. Any advice would be great. Thanks.