KawasakiTrax Community
Tech Information => General Help => Topic started by: Drifter on February 28, 2013, 04:57:32 PM
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Hi everyone
Still trying to get my 79 drifter 340 running bang on. I have cleaned the carb a few times, replaced needle and seat, main jet and pilot jet. My question is does the brass needle jet need to be removed from the carb to be cleaned properly? I spray brake cleaner and compressed air through it but on the parts breakdown it looks like there might be an orfice through it horizontally as well as vertically. I wish I could attach the parts breakdown because it shows it removed from carb.
Still not sure it is a carb issue because it runs poorly through all throttle positions. It's just kinda flat not zingy like a 2 stroke should be. It would not spin the track on launch, just putter off. I changed both coils and that definitely helped. After my rebuild I set the timing position on the factory mark but I wonder if its out. Don't have a timing lite to check.
If I don't git er runnin by march break I will have to pay my guy to figure it out.
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Yes it should be removed and cleaned.
They push out from the bottom when the main jet is removed. Sometimes they can be stuck in there pretty good. I have had to hammer some out .. be careful not to damage it.
Lloyd
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Somewhere around here I have a photo of the needle jet. There is a small reservoir up at the top and at idle air passes through a duct in the bottom of the inlet directly into the reservoir to help atomize the fuel. You have to clean out the reservoir with something small like a torch tip cleaner.
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All right, Knowing it might be stuck in there well I will practice on spare carb but would you try a screwdriver or small socket or something softer than brass to not damage it (maybe make a drift out of nylon slider material?)
Thanks guys
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I have put an old jet in (without the washer) and tapped on the jet with a steel punch and hammer. I even used a steel punch in the 20ton press once. figured I had nothing to lose
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I push them out with a pencil.
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They both came out very easy. Cleaned and reinstalled. No difference in performance. Not sure if I should put the money out for a timing lite or not. I think that should be my next check.
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Somewhere around here I have a photo of the needle jet. There is a small reservoir up at the top and at idle air passes through a duct in the bottom of the inlet directly into the reservoir to help atomize the fuel. You have to clean out the reservoir with something small like a torch tip cleaner.
Here is the photo. I had these out any number of times but never knew enough to clean them. Black gunk is clearly visible in air passage.