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

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  #1  
Old 05-15-2014, 12:39 PM
Danp Danp is offline
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Location: Ontario, Canada
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Default Flat spot in throttle

I have suddenly developed a flat spot or severe stutter at the bottom end of the throttle. If you slowly accelerate, there's no issues.

If you get on the throttle quickly, the flat spot / stutter shows itself.

This just started out of nowhere....

See my sig for my setup. Any suggestions?
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ASW Carbide 150cc
Dr. Pulley variator, 10g sliders, 1500 rpm clutch spring, 39T drive sprocket, A12 camshaft, Intake with Uni Filter, 126 main jet, 38 pilot, performance CDI, performance coil, iridium plug. Now a lean wheel spinnin' machine.
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Old 05-16-2014, 08:29 AM
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bear bear is offline
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I'd start by taking the carb apart, and cleaning it, then inspecting it!
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Old 05-16-2014, 08:46 AM
Danp Danp is offline
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I wouldn't think it would be dirty since I just did the jet changes at the beginning of last summer, but I guess it's a start.

Does anyone know what the float level should be set to?
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ASW Carbide 150cc
Dr. Pulley variator, 10g sliders, 1500 rpm clutch spring, 39T drive sprocket, A12 camshaft, Intake with Uni Filter, 126 main jet, 38 pilot, performance CDI, performance coil, iridium plug. Now a lean wheel spinnin' machine.
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Old 05-16-2014, 03:43 PM
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BuggyMaster BuggyMaster is offline
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You changed the pilot jet? From what to what and what changes to machine from stock?
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