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Ok Guys,
First let me say this is a great forum and I have been lurking here every since I thought about buying my new Kat. I have just recently bought a "new" Katana, I bought a 2002 with 609 miles from some guy that had to move and sell his bike, I got this bike for 2200.00 dollars, I know what a steal! Here is the deal, he dropped the bike in the parking lot @ 500 miles, and then he lost interest in the bike and allowed it to sit in the Garage with a Half tank of gas for over 3 years. So when I got the bike home I immediately got a new batery and drained the tank of the nasty gas, cleaned the inline fuel filter, and believe me it was nasty, I changed the battery and put half a tank of fresh gas in as well as some Techron carb cleaner. So heres the problem, the bike will start only with the choke at full and will run ok @ half choke but when I remove the choke all the way the bike dies every time. I can get it going by pumping the throttle but everytime I stop the bike or depress the clutch the Engine dies. As long as I have it in gear and running at about 5-6k rpms it runs but it also will backfire a little bit, I wanted to just let it sit in the driveway and run with the choke on to get some of the good gas into the system but my buddy said that doing that was just as bad leaving bad gas in it. I dont want to take it to a mechanic if I dont have too and I am pretty good with basic mechanics, just not compleicated stufff like carbs. So what should I do to alleviate this problem. This is what I was going to do next.
1. Check the plugs.(replace if fneccesary)
2. Clean the fuel petcock.
3. Check for a vaccum leak.
Is there anyway the carbs could have gotten gummed up by the bad gas even though the bike only has 600 miles on it?
Any help from you guys would be greatly appreciated.
I wanna ride this bad boy. 
First let me say this is a great forum and I have been lurking here every since I thought about buying my new Kat. I have just recently bought a "new" Katana, I bought a 2002 with 609 miles from some guy that had to move and sell his bike, I got this bike for 2200.00 dollars, I know what a steal! Here is the deal, he dropped the bike in the parking lot @ 500 miles, and then he lost interest in the bike and allowed it to sit in the Garage with a Half tank of gas for over 3 years. So when I got the bike home I immediately got a new batery and drained the tank of the nasty gas, cleaned the inline fuel filter, and believe me it was nasty, I changed the battery and put half a tank of fresh gas in as well as some Techron carb cleaner. So heres the problem, the bike will start only with the choke at full and will run ok @ half choke but when I remove the choke all the way the bike dies every time. I can get it going by pumping the throttle but everytime I stop the bike or depress the clutch the Engine dies. As long as I have it in gear and running at about 5-6k rpms it runs but it also will backfire a little bit, I wanted to just let it sit in the driveway and run with the choke on to get some of the good gas into the system but my buddy said that doing that was just as bad leaving bad gas in it. I dont want to take it to a mechanic if I dont have too and I am pretty good with basic mechanics, just not compleicated stufff like carbs. So what should I do to alleviate this problem. This is what I was going to do next.
1. Check the plugs.(replace if fneccesary)
2. Clean the fuel petcock.
3. Check for a vaccum leak.
Is there anyway the carbs could have gotten gummed up by the bad gas even though the bike only has 600 miles on it?
Any help from you guys would be greatly appreciated.
I wanna ride this bad boy.
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