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Tillotson Inlet Control Lever Fulcrum Arm Pin
32-79 Tillotson Inlet Control Lever Fulcrum Arm Pin
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Tillotson Inlet Control Lever Fulcrum Arm Pin

Part Number: 32-79
Online Price: $0.99
Tillotson 32-79 OEM Fulcrum Arm Pin for HL, HR, HW, HM Carburetors
Availability: In Stock.

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Description

Tillotson 32-79 OEM Inlet Control Lever Fulcrum Arm Pin – Universal Fit for HL, HR, HD, HM, HX, HW Carburetors


The Tillotson 32-79 Inlet Control Lever Pin, also known as the Fulcrum Arm Pin, plays a critical role in the operation of your Tillotson diaphragm-style carburetor. It secures the fulcrum arm in place while allowing it to pivot freely—enabling precise control of the needle valve and regulating fuel flow into the metering chamber.


This OEM part is essential for maintaining accurate fuel delivery and overall carburetor performance. It is secured into the carburetor body using a matching Tillotson fulcrum arm pin screw (sold separately).


Key Features:

  • OEM Part Number: 32-79
  • Function: Anchors the fulcrum arm while allowing smooth vertical motion to operate the needle valve
  • Application: Designed for diaphragm carburetors (not float-style carbs)
  • Compatibility: Fits a wide range of Tillotson HL, HR, HD, HM, HX, HW, HB, HC, and WX carburetors


Compatible Tillotson Carburetor Models Include (but are not limited to):

HL-Series:
HL-1A, HL-129E, HL-132H, HL-166B/C, HL-189F, HL-227A/E, HL-229A, HL-232A/E, HL-250A–E, HL-274E, HL-292G, HL-293A/F, HL-299E, HL-304E/WX/WXA/WXG, HL-306A, HL-314E/F/G, HL-324A, HL-334A/AA/AB/B, HL-339A, HL-341A, HL-342A, HL-348A–E, HL-352A, HL-355A–E, HL-357A/B, HL-360A–C, HL-365A/B, HL-366A, HL-368A, HL-371A, HL-374A, HL-380A/B, HL-383A, HL-384A/B, HL-385A, HL-388A, HL-395A

HR-Series:
HR-181B, HR-184A, HR-190A, HR-191C, HR-191G, HR-196A

HW-Series:
HW-10A/B, HW-11A/B, HW-12A, HW-17A, HW-19A, HW-22A, HW-23A, HW-27A, HW-30A, HW-31A, HW-32A, HW-33A, HW-34A, HW-35A, HW-43A

Other Compatible Models:

  • HB-Series: HB-10A, HB-11A, HB-12A
  • HC-Series: HC-103A, HC-112A
  • HM-Series: HM-1A, HM-2A, HM-12A
  • HX-Series: HX-10A, HX-12A


Installation Note:

Make sure to retain the fulcrum arm pin screw (not included) when replacing this pin. Improper installation or worn pins can result in poor needle valve operation and inconsistent fuel metering.


Ideal for:

  • Small engine builders and tuners
  • Chainsaw, karting, and 2-cycle engine carburetor service
  • Anyone performing a rebuild or restoration of Tillotson diaphragm carbs

FAQ

Q1: What does the Tillotson 32-79 Fulcrum Arm Pin do?

A: This pin secures the fulcrum arm in your diaphragm-style Tillotson carburetor, allowing it to pivot freely. The arm controls the needle valve, which regulates fuel flow into the carburetor.


Q2: Is this pin included in rebuild kits?

A: Some kits include it, but not all. If you're doing a full rebuild or your existing pin is worn, it’s recommended to purchase the 32-79 pin separately to ensure optimal performance.


Q3: Which carburetors are compatible with the 32-79 pin?

A: It fits a wide range of Tillotson HL, HR, HW, HX, HM, HD, HB, HC carburetors—used in chainsaws, karting engines, and other 2-cycle power equipment. Always verify your model before ordering.


Q4: How is the pin installed?

A: It is inserted into the carburetor body and held in place by a fulcrum arm pin screw (not included). Make sure the arm can move freely and smoothly once installed.


Q5: Can I reuse my old fulcrum pin?

A: Only if it’s undamaged and fits tightly. However, due to wear over time, replacing the pin during a rebuild is a good preventative maintenance step.


Q6: What happens if the fulcrum pin is worn or loose?

A: A worn pin can lead to erratic needle valve operation, poor fuel metering, and inconsistent engine performance—especially at idle and under load.

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