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Throttle Return Back Spring for Honda GX200/Clone Engines
138190063 Tillotson Clone Throttle Return Back Spring
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Throttle Return Back Spring for Honda GX200/Clone Engines

Part Number: 138190063
Online Price: $1.49
Throttle Return Back Spring for Honda GX200 and Clone Engines – Safety Throttle Control
Availability: In Stock.

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Description

Throttle Return Back Spring for Honda GX200 & Clone Engines – Reliable Carburetor Safety and Control


The Throttle Return Back Spring is the primary safety spring used in both stock and aftermarket throttle linkage setups on GX200-style engines. It maintains tension between the throttle linkage and the carburetor throttle shaft to ensure the throttle shutter (butterfly valve) returns to the closed position when off-throttle.


In the event of a throttle assembly failure, this spring helps prevent the carburetor from remaining wide open, acting as a critical failsafe. For added protection, it's highly recommended to run a secondary return spring, such as the governor spring, in racing or high-performance applications.


Key Benefits:

  • Ensures throttle closes fully when released
  • Helps prevent wide-open throttle if linkage fails
  • Compatible with both stock and performance throttle setups
  • Essential for safe engine operation in racing and recreational builds


Compatible Carburetors:

Fits most popular clone-style stock carburetors, including:

  • Tillotson PK-1
  • Huayi
  • Ruixing
  • SP Clone-style carburetors


Fits Small Block Engines:

  • Honda GX200 / Clone (196cc)
  • Box Stock Project 196
  • Tillotson 196 / 212
  • Ducar 196 / 212 / 224
  • Predator 212 (Hemi & Non-Hemi)
  • Predator 224 Non-Hemi
  • Wildcat 223


Safety, reliability, and throttle control—this Throttle Return Spring is a must-have for any performance engine setup running a GX200 or clone-style carburetor.

FAQ

Q1: What does a throttle return back spring do?
A1: It keeps tension between the throttle linkage and the carburetor throttle shaft, ensuring the throttle returns to a closed position when released.


Q2: Why is a throttle return spring important?
A2: It prevents the carburetor from remaining wide open if the throttle assembly fails, which is critical for safe engine operation, especially in racing applications.


Q3: Which carburetors is this spring compatible with?
A3: This spring fits most clone-style carburetors, including Tillotson PK-1, Huayi, Ruixing, and SP clone models.


Q4: What engines is this return spring designed for?
A4: It’s compatible with Honda GX200 / Clone (196cc), Box Stock Project 196, Tillotson 196/212, Ducar 196/212/224, Predator 212 (Hemi & Non-Hemi), Predator 224 Non-Hemi, and Wildcat 223.


Q5: Should I also run a secondary return spring?
A5: Yes, a secondary return spring—often the governor spring—provides additional safety in case the primary spring fails. It’s a best practice in competitive or high-RPM engine setups.

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