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| 150cc GY6 and Under Engine Tech GY6 and Smaller Technical Discussion Forum |
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#2
07-16-2012, 06:08 PM
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Welcome How did you clean the carb?
FYI- no need to duplicate a post. 
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#4
07-16-2012, 09:20 PM
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Did you verify the orifices were all clear- use compressed air through them? Did you verify the jets were open and clean? The smallest bit of trash or varnish will effect performance-I'm not too bad at cleaning them and have had to re-clean one more than once to get all the trash out after running it for a short time, especially if it's been sitting for awhile.
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#6
07-16-2012, 10:49 PM
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Is the engine running the stock airbox (the big black one) or does it have an after market filter like a UNI?
If it has the Uni it should have around a 125 main jet, if it is stock it would be around a 114 or 115 main jet.
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T.J. Yerfdog Spiderbox, Uni Type air filter with 6" intake, 130 jet, Orange no-rev limit cdi, Red coil, iridium plug, 1500rpm clutch springs, 1500rpm contra spring, 13g sliders, 22" rears, 21" fronts, aftermarket reverse installed, and Trailtech Vapor.
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#8
07-16-2012, 10:59 PM
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Did you check what size main jet was on it when you cleaned it? if it still has the stock jet on it it may not be getting enough fuel with the extra air the K&N filter is letting in.
You should post what is done to the engine so we can better help you. Any mods other than the air intake? how is the wiring is it clean and in good shape?
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T.J. Yerfdog Spiderbox, Uni Type air filter with 6" intake, 130 jet, Orange no-rev limit cdi, Red coil, iridium plug, 1500rpm clutch springs, 1500rpm contra spring, 13g sliders, 22" rears, 21" fronts, aftermarket reverse installed, and Trailtech Vapor.
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#10
07-16-2012, 11:16 PM
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Cool, get all the info you can and get back to us, so we can help you get it up and running, also post a few pics! they help alot, we might be able to see things you may overlook.
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T.J. Yerfdog Spiderbox, Uni Type air filter with 6" intake, 130 jet, Orange no-rev limit cdi, Red coil, iridium plug, 1500rpm clutch springs, 1500rpm contra spring, 13g sliders, 22" rears, 21" fronts, aftermarket reverse installed, and Trailtech Vapor.
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#11
07-18-2012, 10:59 PM
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i just talk to the friend that is working on my kart he siad that if you ease into the throttle it runs good if you punch the throttle is when it starts acting like it missing. he,s not sure what size of main jet is in it also what kind of carb do they put on 150cc. also i would like to put on a after market spindles,4x4 hubs . i have a set of 4x4 wheels with 20x8 tires i need on the steering as it does not turn very good at all
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#13
07-19-2012, 01:36 AM
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I got my stuff from ************* they sell 4x4 hubs standard and heavy duty,
heavy duty spindles can be found but on a site that can't be posted here. Ball joints can be found on BMI karts also but they are standard, the site that can't be linked sells the heavy duty ones with a life time warranty for $100.00. The best bang for the buck mod will be to get rid of the ball joints all together and change to heims. It's a simple mod and all you need is a hole saw and a welder. What's wrong with your rack? BMI sells them also, for the spiderbox.
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T.J. Yerfdog Spiderbox, Uni Type air filter with 6" intake, 130 jet, Orange no-rev limit cdi, Red coil, iridium plug, 1500rpm clutch springs, 1500rpm contra spring, 13g sliders, 22" rears, 21" fronts, aftermarket reverse installed, and Trailtech Vapor.
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#16
07-20-2012, 03:26 AM
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What do you mean about the 4x4 fitting the spindles? There is no heims kit, it is a modification you do to the a-arms on the front that makes them stronger, adjustable, and much better than the stock ball joints. You buy the Heims and weld in bungs, cut off the old tabs where the ball joints mount to, drill holes weld in the bungs and then screw in the Heims. Bolt on the stock spindles or the BD spindles, and done. The 4x4 hubs should fit as long as you have the correct size bearings installed in them (5/8" ID is the stock size).
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T.J. Yerfdog Spiderbox, Uni Type air filter with 6" intake, 130 jet, Orange no-rev limit cdi, Red coil, iridium plug, 1500rpm clutch springs, 1500rpm contra spring, 13g sliders, 22" rears, 21" fronts, aftermarket reverse installed, and Trailtech Vapor.
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#19
07-20-2012, 01:02 PM
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Check spark @ spark plug, what color is it, what is your compression, were valves set cold or hot. On the carb when cleanning you need a dip to saok overnight then rinse with water and blow out with air. Jets aren't the only thing that gets plugged, the tiny orifices in the carb do as well. Carb cleanner is great for removing varnish but is not effective on removing the hardened residu or oxidation due to ethanol based fuel.
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