GY6 "200cc" ECU - 161QMK EFI Systems

Restore peak performance and throttle response to your fuel-injected GY6 with the Universal Parts Replacement ECU. Specifically mapped for the larger displacement "200cc" (161QMK) EFI engines, this unit ensures optimal air-fuel ratios and ignition timing across the entire powerband.

Engineered for the 161QMK Platform

• Plug-and-Play Integration: Features the standard 18-pin connector for a direct swap with factory Delphi or similar EFI control units.
• Optimized Fuel Mapping: Pre-programmed to handle the increased fuel demands of 170cc to 232cc GY6 big-bore engines, preventing the "lean-out" issues common with stock 150cc ECUs.
• Improved Cold Starts: Advanced logic parameters provide more reliable starting and a stable idle in varying weather conditions.
• Direct OEM Replacement: Replaces faulty or "locked" factory ECUs on popular fuel-injected scooters and ATVs.

Detailed Vehicle Fitment

This ECU is a confirmed fit for most 161QMK / QMK161 4-stroke "200cc" EFI engines found in the following models, and many other 170cc-250cc EFI GY6 scooters.

Brand	Compatible Models
Vitacci	Clash 200, Force 200
Jonway	GTX 200, GTX 250
Cougar Cycle	Force 200
Gator	Tank 200 EFI

Technical Specifications

• Engine Type: 161QMK / QMK161 GY6 4-Stroke
• Displacement Range: 170cc – 232cc
• Connector: 18-Pin Female
• SKU: 164-353

Mechanic's Note: When replacing an ECU, we highly recommend checking your spark plug color after the first 50 miles. If the engine is still running lean, inspect your fuel injector and O2 sensor for proper operation, as this ECU relies on clean sensor data to manage the fuel map.