Question about 2000 Suzuki GSX 600 F (Katana)

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GSX 600F idle and throttle probs

My bike has a mind of its own. Sometimes it runs ok, sometimes not. When the chokes on it actually runs its best, although it idles between 3k and 4k rpm's. With choke off it usually idles below 1k until it dies. Tonight when i came off the clutch it bogged the rpm's down real low and then all the sudden it just kicked in and took off. When I give it just a bit of throttle in like second it kind of sputters in and out like its getting spurts of gas. I tore it down to the carbs and cleaned them and then just put about a half a can of sea foam in the gas tank. Lemme know if you can help me out

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  • cr4zywh1tegu Jan 28, 2009

    thanks man I'll try that this week. Do you mind helpin me out if I have any troubles? I'll post any problems I have on this same thread. I've worked on plenty of motors before but never a bike. I'm not very educated in carbs either but I enjoy tinkering and fixing things so I'll eventually make it happen, with a little help of course. Thanks for the advice I really appreciate it.

  • cr4zywh1tegu Jan 29, 2009

    Ok, I tore the carbs off again, pulled the needles and bottoms off, cleaned out the jets with a toothpick to where I could see all the way through them. I noticed on the bottom of the carbs there was an allen screw that could be turned, I didn't think I should mess with them so I didn't but is there a chance those need tuned? I'm not too familiar with carbs so I was just bein curious. I didn't understand what you were talking about with the spark plug caps too much. I pulled them off and examined them, made sure they were down tight, etc... Now I mentioned that my choke cable was sticking so i tore it off both the carbs and the handlebar so the next time I start the bike up it's probably going to run a little diff without the choke cable stuck and holding the slide halfway open. Pretty much what I'm asking is if the bike dies down with the choke slide closed like it's supposed to, what kind of air to gas ratio tuning do i have to do and how do i do it? Thanks again

  • cr4zywh1tegu Jan 31, 2009

    oh one more question. when your bike is warm, when the choke is turned off, is your choke slide supposed to close completely or is it supposed to stay like 1/2 or 1/4 closed? My bike still will not run with the choke slide completely closed but was running fine with the choke slide in like half open position after being on for about half an hour.

  • Anonymous Apr 17, 2009

    I have exactly the same problem on my 1999 GSX600F. I took the carbs out last night for a really good (and I mean thorough) cleaning, put them back in and fired it up and I'm still getting the same problems with the rev range. Gonna try balancing carbs and cleaning air filter today, fingers crossed!

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Hi m8,, just a couple things,, wen u stripped the carbs down and cleaned them,, did u take the main jets and cold start jets,ie the jet that the needle in the carb sits in,, and poke the dirt out with a pin,, so u can see threw all the holes wen held to the light, u have a blockage still in the carbs,, undo bottoms of carbs take the main jet and the needle jet out ,,and clean ,, make sure your airbox is sealed down on the carbs and jubilee clips are tight,,,1 at a time pull off the spark plug cap and pull off the cap from its ht wire and snip a little bit off the end so u can see copper or brass stranded wire then screw cap back on ,do that to all 4 caps, do these checks ,the bike will run good, ,, look more in2 the carbs tho ,, its almost certain u have a bloked jet still

Posted on Jan 27, 2009

  • terry weightman
    terry weightman Jan 28, 2009

    no problem matey,,, if u have hassles or not sure of summat then please do give me a shout in here,, no worries mr,, nice 1

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