Last october I nuked my 02 540sx (NEVER BUY SOMEBODYS PROJECT BIKE!!!!!!!!) Anyways finnaly Rebuilt the the thing and like an idiot I didnt try the gears until I had the bike running. 2nd through 6th work awesome. On occasion if I have the rpms up and try to shift from nuetral to 2nd It wont shift until it idles down. But I have no first gear. I can slowly push it down and hear the gears chattering and I can get it past that to where it feels like its just about to click in but no farther and soon as I let off the shifter it pops back into nuetral. I havnt had time to tear into it yet. Have been told that it sounded like a bent shift fork from one buddy and another thinkin its clutch issues. What are your thoughts on this?