last oct bike was getting hard to start to the point i could not start for our last race of the season . so i completely rebuilt motor went threw everything new oem crank new high compression piston new valves and seats ported and polished head new buckets and timing chain also replaced the entire transmission . after all that bike wouldn't start until i kicked it a couple hundred times after it started it ran awesome with lots of power and quick throttle response then let it cool down for a couple hours and it wont start again until i kick it a couple hundred times then finally it starts again and runs great and so on. thank you for any help i can get from anyone. mick.