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blueboy5000 · 07-25-2013, 03:58 PM

If the a/f screw does nothing, and you removed the enricher, I'd cut my loses and get a new carb.

If you did not plug the enricher hole, you've got a lean condition. Lean causes backfiring and popping.

You should make sure your intake has no cracks, and is tight to the cylinder, as well as the carb. If you are using an open element air-filter you need a #85 or larger jet, and even then, it is sometime necessary to "restict" the filter by covering part of the filter (with e-tape or something similar)

Sans air-filter, your bike will be much much too lean, so always use one.

This is all basic gy6 carb theory, yours will not take a/f adjustments, so save yourself the hassle and buy a new one.

07-25-2013, 03:58 PM	#2
blueboy5000 Join Date: Jul 2011 Location: Connecticut Posts: 493	If the a/f screw does nothing, and you removed the enricher, I'd cut my loses and get a new carb. If you did not plug the enricher hole, you've got a lean condition. Lean causes backfiring and popping. You should make sure your intake has no cracks, and is tight to the cylinder, as well as the carb. If you are using an open element air-filter you need a #85 or larger jet, and even then, it is sometime necessary to "restict" the filter by covering part of the filter (with e-tape or something similar) Sans air-filter, your bike will be much much too lean, so always use one. This is all basic gy6 carb theory, yours will not take a/f adjustments, so save yourself the hassle and buy a new one. __________________ 2011 Roketa MC-23-150 4T 150cc 157 qmj 24mm carb w 115 main jet and paper cone air filter Manual petcock w Tygon fuel lines Scrappy Dog Scooters Retro-slash stainless straight-thru exhaust RED spring clutch Adjustable CDI (brand unknown, it's blue and red and works great!) KOSO high performance variator w 12g sliders Gates Powerlink 835-20-30 belt GPS verified 65mph on flats.
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