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Old 10-06-2013, 03:46 PM   #1
lakailuis
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NEED HELP 1989 NINJA 600R

I have a 1989 Kawasaki Ninja 600 that I bought about 2 months ago, it was running when I got it but the RPM's were jumping around a bit. I rode it almost everyday and I didn't get any problems. About a month later it started to run real bad under 3,000 RPM's and then it got worse and worse everyday until it just would not turn on. I've changed out the spark plugs, changed the oil, cleaned all the carb jets and even had a mechanic come to my house to check it out. I finally got it to start by doing a combination of using the choke and a little bit of throttle while trying to start it, it wouldn't stay on so I had to let it warm up for about 5 min then it would idle at around 1,500. Then I turned it off and tried to put all the fairings on and by the time I put it back together it wouldn't turn on anymore. I have no idea what the problem could be at all. Oh and when I turned it on there was a lot of white smoke but then it cleared out and went back to normal after about a minute. I need help ASAP!
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Old 10-06-2013, 04:31 PM   #2
cuong-nutz
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When was the last time your did a carb rebuild? What all did you do for the rebuild? Check the o rings for the pilot screws. Have you checked compression?
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Old 10-06-2013, 04:42 PM   #3
bluewave18
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Yup. Its carbs
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Old 10-06-2013, 05:05 PM   #4
lakailuis
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Quote:
Originally Posted by cuong-nutz View Post
When was the last time your did a carb rebuild? What all did you do for the rebuild? Check the o rings for the pilot screws. Have you checked compression?
I haven't done a rebuild yet, I don't know when was the last time the previous owner did it either. I just cleaned all the jets with compressed air and soaked them in seafoam and inspected all around, before I took the carbs apart the pilot screws were out 3 1/2 turns but the book says 2 turns out so I left them at 2 turns out. I'm going to check the o rings on Monday. I'm getting the tool from work on monday to check out the compression.
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Old 10-06-2013, 05:52 PM   #5
Mainland Cycle
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Checking compression is a good thing to do. Be sure to open the throttle all the way while doing the compression check. This will give you a more accurate reading. If the compression is low check the valve clearance. I have seen the valves get tight on these motors. If the valves are getting tight this may be a sign of another problem. I won't go into it, unless that is the case. Let me know if it is and I will let you know what is probably going on. You likely also need a good carb cleaning as others have said. Carbs are fairly simple, it is also very easy to not get everything right when cleaning and reassembling if you do not what you are doing. We have bikes in our service department all the time that someone else "cleaned" the carbs, and we clean them to find them, not very clean, not assembled properly, and not adjusted correctly.
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