Hello, i recently bought a kz 305 from craigslist and worked great for the first 24 hours, then i heard a chug while on the free way, saw smoke from one exhaust pipe and the front of the engine. Now it doesn't run, i took out the old spark plugs (the side the exhaust was smoking from, the whole igition cap looking thing under the arm lookin thing on the bottom of the spark plug just is gone) cleaned the carbs, changed oil and the gas was fresh. While putting the carbs back i forgot to tighten the throttle cable and tried to start it up and to surprisingly it started right up but was roaring at high RPMS. It shifted gears and everything just did not want to be stopped. After it being on for maybe 45 seconds top it started to smoke out of a seal in the exhaust pipe not the actual tail end. So I turned the bike off put the throttle cable to where it should be and now i am back to where i started. I am at a loss and really would not like to take it to a shop, do ya'll have any ideas?
here is a video of the bike:
