So my bike was working great. I was so confident in it that I rode it to work. When I got out of work it would not start. I got a ride home and two days later I tried again and it started but this time it would not start with the choke fully up, this time it needed to be down just a little bit for it to start and I needed to hold the throttle down just a little bit which I did not need to do prior to this. So I decided to do a little work on it. I tightened the carb down because I noticed it was coming a little loose from the vibrations and I used a little locktight on it to seal it. Now it won't start at all. I have a spark and I switched my magneto out with a friends who has a working bike and still nothing. It will not fire up or anything just comes to a stop. I'm still researching and truoble shooting but any extra advice would help.