Hey guys, my 84 is giving me a fit. I had her out of the garage yesterday and was waxing her,added a little oil, fixed a broken side cover and just getting her ready for a ride. Before I did this I cranked her up and she ran fine. After doing her grooming and upkeep, I cranker her, she started very hard, reving the engine is very slow and she backfires a lot. She wont idle on her own. What do you guys think? I have checked over everything I did and cant find a thing. Thanks