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30mm Throttle Body Assembly for GY6 169cc 170cc EFI Engine
30mm Throttle Body Assembly for GY6 169cc 170cc EFI Engine
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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.
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Fitment FAQ
Will this part fit my specific model and year?
This throttle body is intended for selected GY6-style 169cc and 170cc EFI engines and is also listed for certain Jonway GTX 250 / EFI 200 applications.
Fitment depends on the original throttle-body configuration, EFI system, mounting dimensions, and electrical connections rather than model year or displacement alone.
Do I need to match the OEM part number?
No OEM part number is provided in the original product information.
Instead, compare the replacement with the original throttle body, especially the:
30mm air inlet
40mm engine-side outlet
45mm mounting-hole spacing
7mm mounting holes
Mounting pattern
Electrical connections
Throttle cable arrangement
If your original throttle body has an OEM number, use it as an additional fitment reference.
What models or situations does this part not fit?
Do not assume compatibility with:
Every GY6 engine
Carbureted GY6 engines
Every 169cc or 170cc engine
Every Jonway 200cc or 250cc scooter
Throttle bodies with different inlet or outlet diameters
Applications using a different mounting pattern
EFI systems using different sensors or electrical connectors
A similar engine displacement does not guarantee throttle-body compatibility.
What should I check before ordering?
Confirm:
EFI / fuel-injected engine
Exact engine model where available
Original throttle body appearance
30mm air inlet diameter
40mm engine-side outlet diameter
45mm mounting-hole spacing
7mm mounting-hole diameter
Electrical connectors and sensors
Throttle cable mounting
Injector/fuel-system configuration
Intake manifold connection
Compare the product photos carefully with the original assembly before purchase.