I've had an 04 piston in for awhile and have had no problems with cranking. My intake valves recently almost bottomed out on one side and so I reshimmed eveything and got it back into spec. Put everything back together and went to crank it. One the first time cranking the kickstarter just stopped. I had to crank it by getting it just past TDC and then it would be really easy just as before. After the motor gets hot it does the same thing, even with the decompression hot start engaged. You have to go just past TDC and it fired right up. I don't think this is right is it. It almost feels like it is binding against something. But, all I did was reshim the valves. Has anyone else experienced this? Could it have that much compression from the 04 piston?