GY6 EFI Throttle Body Intake & Injector
ITEM# TT-15734
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Description
Throttle Body Intake and Injector for GY6 EFI Engines
This throttle body intake and injector kit is built for GY6 EFI engines in the 125cc, 150cc, and 169cc sizes. It controls the flow of air and fuel into the engine, so it plays a direct role in how well the engine runs. If you need to maintain or restore that function, this part can be swapped in. It is one of the core GY6 scooter parts you may need. Everything required for a full installation comes in the box, which makes it a dependable option for home mechanics.
Component Overview
The kit consists of a full EFI throttle body paired with an intake manifold. The package also contains a fuel injector, a mass air sensor (MAS), a throttle position sensor (TPS), and a manifold absolute pressure sensor (MAP). The intake has a 32mm inner diameter, which allows air to move through the system efficiently and keeps the engine running evenly.
Installation Details
This throttle body assembly bolts directly onto GY6 157QMJ-based engine heads, with a bolt hole spacing of 45mm. A rubber O-ring is included to create a tight seal and reduce the chance of air leaking in. During installation, confirm that every sensor is plugged in correctly so the system can read and respond reliably.
Specifications
- Inner Diameter (intake): 32mm
- Inner Diameter (manifold): 25mm
- Bolt Hole Spacing: 45mm
- Includes: Throttle body, fuel injector, MAS, TPS, MAP sensors, O-ring
- Engine Compatibility: 157QMJ-based 125cc / 150cc / 169cc GY6 EFI
- Fits: 157QMJ-based GY6 4-stroke EFI engines: 125cc, 150cc and 169cc
Fitment
Fits:
- GY6 4-stroke EFI engines, 125cc, 150cc and 169cc (157QMJ-based)
- Engine codes: 157QMJ, 161QMK, 152QMI, 1P61QMK, YN1P57QMJ, 1P52FMI, 154FMI, JJ157QMJ, 1P57QMJ, BN157QMJ, BN161QMK-A, other QMJ, QMK and QMI variants
How to choose: Find the engine code stamped on your engine case and compare it with the compatible engine codes list. Also confirm that your engine displacement is 125cc, 150cc, or 169cc.
Shop more: GY6 Scooter Parts · Chinese Scooter Parts · Scooter Cables & Throttles · Scooter Body Panels & Fenders · Scooter Parts
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