Hey guys! So a friend of mine gave me a bike. It's a Suzuki gs550ef but I'm not sure of the year because it had no manual and the owner had no idea but I'm guessing it s a 1984. Its been sitting for about 18 years and it hasn't run or had any oil in the bike itself the entire time. I put it the right oil and got the gas tank cleaned because it really needed it, and I got a new battery. Put some gas in it but there was a problem with the gas tank the guy forgot to plug up the whole. So by the time I got it back again I thought I would check the spark plugs again and one of the plugs miss threaded. So anyone wanna give me a hand tapping the header and potentially trying to get the bike started?