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Tillotson 196-212 Stock Carburetor Throttle Shutter/Butterfly
308080025 Tillotson Clone Carburetor Throttle Shutter/Butterfly
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Tillotson 196-212 Stock Carburetor Throttle Shutter/Butterfly

Part Number: 308080025
Your Price: $1.00
Throttle Shutter/Butterfly for Tillotson 196-212 Stock Carburetor
Availability: In Stock.

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Description

The 308080025 Throttle Shutter or Butterfly controls the airflow through the inlet of the carburetor. 

The butterfly has some effect on the fuel signal not just by control the air coming into the carburetor but its direction. Some carburetor builder points the butterfly's backside toward the low side circuit to improve signal and draw more fuel. In contrast, others focus on positioning the butterfly for optima flow at wide-open throttle. 


Bore Diameter .625.ДђЛ›€Ð•Ñ“Е›


The Carburetor Throttle Shutter fits most Clone Carburetors, including the Tillotson PK-1, Hyuai, Ruixing, and SP Carburetors on the Honda GX200, Ducar 196, Ducar/Tillotson 212E, Tillotson 196R/RS, Tillotson 212R, Ducar/Tillotson 212E, Predator 212, and BSP 196 and 212 Engines.


AKRA 2020 Rules for Throttle Butterfly

Butterfly .037ДђЛ›€Ð•Ñ“Е› thickness. Butterfly screw minimum length .305ДђЛ›€Ð•Ñ“Е›, the screw must remain stock as produced with no alteration allowed to achieve min length.


NKA 2020 Rules for Throttle Butterfly

40.4.11.6: Butterfly 

The butterfly is .037ДђЛ›€Ð•Ñ“Е› min thickness; butterfly screws minimum length 0.305ДђЛ›€Ð•Ñ“Е›.

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