• 1 × HSR42mm Carburetor Assembly (as shown)

• Complete with integrated mounting hardware and linkage components

Package Includes

• Noticeable increase in low-end torque for quicker launches

• Crisper, more responsive throttle action

• Smoother idle and more consistent running characteristics

• Extended high-RPM power band for enhanced performance potential

Performance Improvements

1. Precision Machined Components

   Constructed with high-grade aluminum alloy for the main body and components, ensuring exceptional durability and resistance to warping under high heat and compression. The precision bore maintains tight tolerances for reliable long-term operation.
2. Progressive Fuel Delivery System

   Features a progressive circuit design that provides smooth low-speed idle and acceleration, while the main circuit delivers crisp high-RPM power. This dual-stage operation ensures a seamless power band, eliminating flat spots and improving drivability.
3. High-Flow Intake Path

   Optimized internal airflow passages minimize airflow restriction, maximizing volumetric efficiency. This design directly translates to increased horsepower and torque, particularly in the mid-to-upper RPM range.
4. Easy Adjustability

   Equipped with easily accessible adjustment screws for idle speed and air/fuel mixture, allowing for fine-tuning to suit specific engine modifications, altitude, and fuel quality requirements.
5. Direct Replacement Design

   Manufactured to exact OEM dimensions and mounting patterns, enabling a straightforward, no-modification installation. No additional adapters or hardware are required for a secure fit.

Key Features & Benefits

• Type: High-Speed Racing (HSR) Carburetor

• Bore Size: 42mm

• Compatible Specification: TM42-6

• Application: Evo Twin Cam Engines

• Structure: Dual-choke design with progressive circuit

• Inlet Thread: Standard 42mm mounting interface

• Color: Matte Black Anodized Finish (corrosion & heat resistant)

• Net Weight: Approx. 1.8 kg

• Package Dimensions: Approx. 25 × 20 × 15 cm

Core Specifications

Product Overview

HSR42mm Carburetor for TM42-6 Evo Twin Cam Applications