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Old 10-03-2009, 03:18 PM   #1
CaligoneTx
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gsxf600 wont run

Carbs have been cleaned, sparkplugs are not old, fuel was flushed, fuel filter blown out w air, lines cleaned, pepcock removed and cleaned, seafoam added. TPS sweep is consistant on an oscilliscope.

It will idle just fine forever, at 15% throttle and up dead miss across all cylinders. If I close the choke while running over 3k the bike will accelerate a little more, but dies immediately when I come to a stop w the choke closed.

So to me looks like its running way too lean. Is there a simple adjustment for this on each carb?
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Old 10-03-2009, 03:40 PM   #2
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I've had the kat sitting since I was riding around the parkinglot.

apparently it wasnt just carb cleaning w my original issue.

If it sits, I can start and idle it just fine, but the moment I give it gas it cuts out. I have to slowly play w the throttle until I can use it(about 8 minutes each time I start.

And its doing it again now.

Any ideas?

I loosened the TPS and have tried turning it while the bike was cutting out.
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Old 10-04-2009, 09:27 AM   #3
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sorry Matt on your kat acting up.i still think carbs r problem-something with power valves (big diaphrams+needles) vaccum or back pressure so carbs not enriching.carbs r not feed back carbs like car !!! TPS on this kat only tell ecu how soon and how much to advance timming !
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Old 10-04-2009, 10:01 AM   #4
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Matt,
The carbs are not clean or something in them is assembled / adjusted incorrectly, simple as that.

Pull them off and bring them by on Tuesday and I'll look at them.
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Old 10-04-2009, 10:08 AM   #5
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hello Patrick,
i still think carbs r reason right ? ! now it's a good day for him to pull them off or may be still have much hang over, hahahaha,wake up Matt
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Old 10-05-2009, 10:17 PM   #6
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Sorry, just read this!

Ok; I'll pull them off when I get some time. I'll have to do it at home and bring them in.

I may also do so on the Honda because that one had a stage one kit put in it and I wasn't the one that did the work; I want to make sure it was done right as well.
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Old 10-05-2009, 10:43 PM   #7
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U know, I was looking through at schematic and I realized I didnt pull the pilot screws... hum... I could have some junk built up in there.
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Old 10-06-2009, 07:43 AM   #8
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I had the same problem on mine. Rather than pull the carbs, I used barryman chem tool. I filled them using the straw, let them sit and then then drained them. I had to repeat a few times. It cleaned them right up. Dont get the stuff on paint though. Fillem up, wait, and then pull the drain screw.All kinds of sandy looking drained out.
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Old 10-06-2009, 08:48 AM   #9
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I dont have a prob pulling the carbs.

Takes less then 5 minutes on each bike(mainly cuz the honda is in pieces and the kat is a sport touring and was designed for easy tear down/repair.

I may be taking the carbs of the kat tonight and looking at them tomorrow.

I'll let ya know what I find. Otherwise I'll let Motorcycles Unlimited do what I cannot
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Old 10-06-2009, 08:49 AM   #10
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Quote:
Originally Posted by bluewave18 View Post
I had the same problem on mine. Rather than pull the carbs, I used barryman chem tool. I filled them using the straw, let them sit and then then drained them. I had to repeat a few times. It cleaned them right up. Dont get the stuff on paint though. Fillem up, wait, and then pull the drain screw.All kinds of sandy looking drained out.


That stuff is on rubber components inside the carbs too.
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Old 10-06-2009, 08:52 AM   #11
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I had a similar issue on a jet ski, it ended up being the voltage regulator was bad and it was sending in excess of 18v to the plugs so they couldn't operate properly. I've never known that to be a problem on a bike but it may be an issue that you've overlooked. I'm just trying the think outside the box since it seems like you have just about everything else covered
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Old 10-06-2009, 10:40 AM   #12
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Unless those carbs got dipped in acid (carberator cleaner) then they are still dirty and need to be cleaned properly
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Old 10-06-2009, 10:47 AM   #13
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The pilots would affect throttle at about the range you are talking about., also check for any vac leaks that might be present. Usually carbs have those rubber nipples (ha ha go ahead and laugh) that cover ports, if they are cracked it can cause an issue as well.
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