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150cc GY6 and Under Engine Tech GY6 and Smaller Technical Discussion Forum

 
 
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  #1  
Old 03-25-2010, 07:28 PM
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Default Help please!

I have a 150cc Carbide and it is sometimes hard to get started and once it is started it idals great but once i get going i only get up to (if im lucky) 20mph. im supposed to be goin around 50mph. it sounds like its not getting enough gas and it keeps like staling in and out when im driving. its weird because when i turn left it doesnt get any gas, when i go straight it goes on and off and when i take right turns it runs perfect. please help! im so lost and everyone i ask has no clue so this is my last resort... PLEASE HELP ME!
  #2  
Old 03-25-2010, 07:35 PM
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how old is the buggy how many miles are on it has it always ran like this or did it just start.
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  #3  
Old 03-25-2010, 07:46 PM
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i bought it last summer. it has 200 miles but i think that thing is screwed up, prolly less, and it started doing this before i stored it for the winter
  #4  
Old 03-25-2010, 07:59 PM
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I would start with a valve adjustment check your spark plug and see if it is white or black.Also check your in line fuel filter alot of these are installed up side down from the factory.There is a arrow on it that should be pointing to the carb not the gas tank.My filter was clogged with little plastic shavings.
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  #5  
Old 03-25-2010, 08:18 PM
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spark plug is white (lean) and the in line filter is the right way and i adjusted the valves but just nothing will work
  #6  
Old 03-25-2010, 08:24 PM
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check the float setting in your carb bowl. from what you describe, it sounds like the float is set to low and won't allow the carb to fill with enough fuel.
Remove the carb, then remove the float bowl. hold the carb up side down and hold it level . Sight across the edge where the rubber gasket sets. The float should be level with the edge. If the float is tilted one way or another, there is the tab and hook that connects it to the needle valve. carfully bend the tab to set the float straight. Do not push down on the needle valve! Remove the float to make adjustments by sliding the pin out that holds the float in place. It's very simple to do, just observe how it all goes together before removing the pin. The parts, [4 pieces] all are very small so do this over a clean towel so nothing gets lost.
There are tons of pics all over the web showing this. do a search for a Kehin 24mm. the carb you have is probably a clone but the settings and parts are the same.
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Old 03-25-2010, 08:27 PM
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ok ill try that tomorrow thanx for the help
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Old 03-25-2010, 08:28 PM
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you need to rejet
a uni filter will probaly help you also
i always take out all the parts inside my fuel petcocks out
a old dirt bike trick ruins better w/o
if you are going to rejet "you need too"
uni first if you are going to put one on then rejet
olderthan
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olderthan
2008 tomberline punisher
1500 spring 12g sliders
30mm cv pumper carb
uni filter no rev cdi
polaris xlt snowmobile shocks for front
w/550 magnum springs & blaster fronts on rear
and another buggy built working on mods gk-13
white spring 17 gram sliders so far

Last edited by olderthan; 03-25-2010 at 09:09 PM.
  #9  
Old 03-25-2010, 08:32 PM
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Do what ckau said and these buggys come jetted lean from the factory if you have the carb apart you should go to a 128 or 130 main jet.I would also get rid of the vacuum petcock and replace it with a manual one step up to 1/4inch fuel line.
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asw carbide 1500 main and clutch springs HP clutch and bell koso variator performance cdi uni redneck intake fmf exaust 9gram rollers 39 tooth sprocket 140main and 40 pilot jet
  #10  
Old 03-25-2010, 08:44 PM
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ok i will try
  #11  
Old 03-25-2010, 08:45 PM
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wait. what do i do with the hoses coming out of the carb for the suction in the vaccum petcock if i get a manual one
  #12  
Old 03-25-2010, 10:04 PM
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You eliminate them and run a hose from the intake to the carb.
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