So I have a 2008 660, the shift lever will catch low,and reverse just fine, will catch park if I pull down hard on it, neutral if i play with it shifting from high to neutral and back. It will show high a lot, but hardly ever catches it, and if it does catch it, it’s a hard shift, and eventually comes out after a minute or two. I have tried adjusting the lever, but after trying for two days, couldn’t get it, and pulled it all the way off, and tried to shift with my hand, the only gear it felt like it would catch is low, and reverse, and park. the rest didn’t feel like they were there. I have a parts bike and it feels way tighter there, what internally could be my problem, and if it is internal, how much of a pain is it to change?