30mm Throttle Body Assembly for GY6 169cc 170cc EFI Engine

Product Overview

Replacement 30mm throttle body assembly for selected GY6-style 169cc and 170cc EFI engines used in compatible scooters and related powersports applications.

The throttle body controls the amount of intake air entering the engine in response to throttle input and works as part of the electronic fuel-injection system.

This assembly features an approximately 30mm air inlet, 40mm engine-side outlet, 45mm mounting-hole spacing, and 7mm mounting holes.

Also listed for selected Jonway GTX 250 / EFI 200 applications, but these vehicles should be verified carefully by the original throttle body, dimensions, mounting pattern, electrical connections, and EFI configuration before ordering.

Product Compatibility

Engine / Vehicle	Fuel System	Fitment Notes
GY6-Style 169cc Engine	EFI	Verify throttle body dimensions
GY6-Style 170cc Engine	EFI	Selected compatible applications
Jonway GTX 250	EFI	Verify original throttle body before ordering
Jonway EFI 200	EFI	Verify exact model and EFI configuration
Scooter / Powersports Vehicle	EFI	Compatible GY6-style applications only

Fitment is determined by the EFI system and throttle-body configuration, not engine displacement alone.

Specifications

Specification	Details
Product Type	Throttle Body Assembly
Application	GY6-Style EFI Engine
Fuel System	Electronic Fuel Injection (EFI)
Listed Engine Size	169cc / 170cc
Air Inlet Diameter	Approx. 30 mm / 1.18 in
Engine-Side Outlet Diameter	Approx. 40 mm / 1.57 in
Mounting Hole Distance	Approx. 45 mm / 1.77 in
Mounting Hole Diameter	Approx. 7 mm / 0.28 in
Condition	New
Package Quantity	1 Throttle Body Assembly

Key Features

• 30mm Air Inlet: Designed for compatible GY6-style EFI intake systems.
• EFI Application: Controls intake airflow as part of the engine's electronic fuel-injection system.
• Dimension-Based Fitment: 30mm inlet, 40mm outlet, and 45mm mounting spacing provide important compatibility references.
• GY6-Style Engine Application: Suitable for selected 169cc and 170cc fuel-injected engines.
• Replacement Assembly: Designed to replace a compatible worn, damaged, or malfunctioning original throttle body.