Grab a beer and sit down. I have a story to tell. I was 14 was a friend of the family gave me their old 1982 cb650. That was my first cycle. I slowly started restoring with the help of my dad. We de-rusted the tank, clean the electronics up, and "I" pulled the carbs and cleaned them. I was so proud of my self. I took my time to get it all right. Soaked them in some junk i cannot remember now, slowly put them back together, and put them on the bike. (Just you know, it did start b4 i did that to the carbs, there was bad build up on the bottom of the bowls). I filled the tank with gas, sat down on the bike and begain to start it. Just in case a bowl was stuck i put a rag under the carbs to catch gas. I fired it up and got it running. Back firering and spitting and sputtering she was,,, but she ran. Then I smelled GAS!!!! Looked down between my legs and sure enough, carb 2 was pouring gas out. Before i could get off the bike it backfired, the gas caught FIRE, started burning the old eletrics, some how went up to the gas tak. I yanked the tank, tossed it out on the driveway (beside my dad's NEW truck, and just to add the bike was sitting be side a 1976 "Stingray Corvet"). All the while the bike was still on fire. Ran got the hose finally put out both the tank and bike. I was devestated! Sold the bike for $50 a week later. 2 weeks after that the "friend" I sold it to drove up to the house on it telling me how great a bike it is. I still hate him to this day....