I bought a 94 Kat 600 from a guy for 150 bucks. I got it started today after quite a while. I dont know anything about bikes this is my first bike. The choke cable is disconnected and I am not sure where it hooks up. Anyway I got it started and it was smoking out of the exhast pipe. The guy who I bout the bike from said he took the tank off to change the plugs and disconnected the vacuum hoses and didnt remember where they went. I put them where they looked like they should go. i was just wondering if a vacuum hose in the wrong place would cause the smoking cause he said it didnt start smoking until he changed the plugs and messed with the vacuum hoses. Any help would be appreciated. thanks in advance.