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  5. EC LK-137 Tillotson HL Single Stack Up-Pull w/2-Phase Arm Linkage Kit
EC LK-137 Tillotson HL Single Stack Up-Pull w/2-Phase Arm Linkage Kit
LK-137 EC HL Double Stack Up-Pull w/2-Phase Arm Linkage Kit
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EC LK-137 Tillotson HL Single Stack Up-Pull w/2-Phase Arm Linkage Kit

Part Number: LK-137
Online Price: $26.95
EC LK-137 Up-Pull Throttle Linkage Kit for Tillotson HL 2-Plate Carburetors
Availability: In Stock.

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Description

EC LK-137 Linkage Kit for Tillotson HL Single Stack Carburetors – Up-Pull Throttle with 2-Phase Arm


The EC LK-137 Linkage Kit is a high-performance throttle linkage system specifically engineered for Tillotson HL Single Stack (Two-Plate) diaphragm carburetors. Designed for serious kart racers, this kit converts your carburetor to an up-pull throttle configuration using robust, CNC-machined billet components for enhanced durability, precision, and throttle control.

The LK-137 shares the same core components as the proven LK-135 kit but includes an upgraded 2-phase throttle armfor smoother, more responsive operation—perfect for competitive small engine and kart racing applications.


Compatible With:

  • Tillotson HL Single Stack (Two-Plate) diaphragm carburetors
  • Commonly found in high-performance kart racing engines and other racing-grade small engines

If you're running a Double Stack (Three-Plate) carburetor, check out the LK-138 Linkage Kit instead.


What’s Included:

  • LK-90A 90° Throttle Cable Guide
    Guides your 3/16" nylon throttle cable housing (part #300) with smooth, snag-free operation—ideal for tight engine bays.
  • EC-139 Billet Throttle Bracket
    Attaches securely to the pump stack of Tillotson HL carburetors, providing a rock-solid mount for the throttle cable guide.
  • LK-131 Billet 2-Phase Throttle Arm
    Clamps onto the carburetor’s extended throttle shaft and transforms it into a precise up-pull throttle system with improved control and adjustability.
  • (2x) 6-32 x 1.125” Socket Cap Screws
    Replaces two existing pump stack bolts. Requires a 7/64" Allen wrench/hex key for installation.


Key Difference vs. LK-138:

Feature

LK-137

LK-138

Carburetor Compatibility

Single Stack (Two-Plate)

Double Stack (Three-Plate)

Hardware Length

Shorter

Longer

The only variation between the LK-137 and LK-138 is the length of the mounting screws, tailored to different stack configurations.


Why Choose the EC LK-137 Linkage Kit?

  • Precision-designed for single stack Tillotson HL carburetors
  • Converts to up-pull throttle for cleaner cable routing and smoother control
  • Includes a 2-phase billet throttle arm for enhanced responsiveness
  • Durable CNC-machined aluminum components
  • Engineered by EC Carburetors, trusted by professional kart racers


Get Track-Ready Throttle Control

Upgrade your carburetor confidently with the EC LK-137 Linkage Kit. Whether you're building a new racing setup or improving an existing one, this kit ensures smooth throttle action, clean cable routing, and consistent performance under race conditions.

FAQ

What is the EC LK-137 Linkage Kit used for?

The LK-137 Linkage Kit converts Tillotson HL Single Stack (2-Plate) carburetors to an up-pull throttle setup, improving throttle response and cable routing in high-performance racing engines.


What carburetors is the LK-137 compatible with?

This kit is designed for Single Stack (Two-Plate) Tillotson HL diaphragm carburetors commonly found on racing kart engines and other small high-output motors.


What’s the difference between LK-137 and LK-138?

Both kits are identical except for the mounting screw length:

  • LK-137 is for Single Stack (2-Plate) carburetors
  • LK-138 is for Double Stack (3-Plate) carburetors


Does this kit include all necessary hardware?

Yes. The EC LK-137 includes a throttle arm, billet bracket, cable guide, and mounting screws. You only need a 7/64" Allen wrench for installation.


Can I use this kit for competitive kart racing?

Absolutely. This linkage kit is engineered by EC Carburetors specifically for racing applications, delivering smooth throttle action, durability, and precision control.

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