Hey all, this is my first post but I just ran into a serious problem with my cx500c. First off let me say it is a 1982 Honda cx500c with about 15,000 miles on it. (or so it says). on one side of the engine block it has silicone running down the side. i'm sure someone before me has gotten into the engine. Okay so, my bike has been running great as of late. No problems all was smooth. We took off the seat and the tank and i were checking it over one day, we also changed the antifreeze. Anyways the next day my engine started leaking antifreeze, we replaced the o ring on the metal arm leading to the engine. (sorry guys i know zero technical terms). that seamed to fix the problem, now today I took it out to go to work and it started backfiring. at first it wasn't horrible and i figured it was running rich or i needed to clean the carbs. but but as i kept going the idle speed went lower and lower. eventually i had to keep the throttle open just to keep it going. when i was almost to work it started smoking massive backfires and eventually it died. i just was able to coast it into my work. Please Please Please help me!!!!!!!!!!! this is way over my head. I don't have a ton of skills and this is my first bike. I will say i'll do anything to get this up and running again.