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techtalk:ref:carb07 [2021/08/09 19:50]
ixl2relax [Needle & Emulsion Tube]
techtalk:ref:carb07 [2021/08/09 20:07]
ixl2relax [Needle & Emulsion Tube]
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 Changes in the needle and emulsion tubes from aftermarket vendors may modify the (stock/oem) AFR from just off idle thru wide-open throttle. The length and size of the needle as it moves thru the needle jet along with the size and placement of the holes in the emulsion tube, will determine the air-fuel ratio of the fuel. Along with the other operating parts of the carb, they affect how well the engine operates under each varying condition. Changes in the needle and emulsion tubes from aftermarket vendors may modify the (stock/oem) AFR from just off idle thru wide-open throttle. The length and size of the needle as it moves thru the needle jet along with the size and placement of the holes in the emulsion tube, will determine the air-fuel ratio of the fuel. Along with the other operating parts of the carb, they affect how well the engine operates under each varying condition.
  
-CV Performance offers two aftermarket needles, Velocity & N65, and one emulsion tube, Velocity. The N65 is designed as an equivalent alternative to the Keihin N65C needle, which HD & Keihin have stopped producing. The Velocity Needle & Velocity Emulsion tube are designed to provide a different AFR.+CV Performance offers two aftermarket needles, Velocity & N65, and one emulsion tube, Velocity. The CVP N65 is designed as an equivalent alternative to the Keihin N65C needle, which HD & Keihin have stopped producing. The Velocity Needle & Velocity Emulsion tube are designed to provide a different AFR.
  
 Using unknown parts or parts designed to radically alter the carb operation to favor one specific enhancement will often complicate or degrade the overall smooth operation of the carb. Using unknown parts or parts designed to radically alter the carb operation to favor one specific enhancement will often complicate or degrade the overall smooth operation of the carb.