hi everyone, i was out on my newly purchased bike(used) this weekend no problems at all then after a couple of hours into the day it started smoking out of nowhere(white smoke) thought it would clear up did a few more laps round still smoking pulled up cut it out and it started smoking very bad like something was on fire inside the exhaust and a very strong smell, it smelt like a house fire thats only way i could describe it. havent rode the bike since wanted to get some input in case its something serious. any info/ideas are very much appreciated. im wanting to be back out this sat/sun hopefully. if its something serious ill probably sell up as im useless with bikes lol lost my rag trying to put my back wheel back on lol i dont have enough patience hope somebody can shed some light