so, i rode my bike to work today, ran great. when i got off, i came out and started it up and basked in the glory of the fact that my bike is running good. it was about 90 degrees out. on the way home i got stuck in traffic. then, my bike would not run hardly. it almost acted like a cylinder wasnt firing. it would get about 45 mph or 5k rpm. i was scared(this happened on the freeway) so i pulled over on an exit and took a look at it. nothing. it wouldnt rev up at all and it was popping and backfiring like crazy on the down rev. Well, i decided to limp it home and once i got going, i seemed to run way better... i dint try to rev it up or anything but it was running better. idling like crap tho....... any thoughts?