I've gone through 3 kickstart ratchet guides now. What am I doing wrong?? they keep cracking in the "armpit" of the guide portion that pulls the ratchets apart. I've checked each time and I'm putting everything together in the correct sequence. This time, I got the bike running and immediately it started again with the dreaded buzzing where the gears aren't separating enough so they rub together. My first thought was I put it together wrong. but I just split the case again and everything was together in the proper order but the guide was cracked and bent so it wasn't pulling the lobe of the gear far enough. I was really hoping to participate in DGR this sunday but it looks like that's not happening. help help help!