2014-2018 Suzuki King Quad 750 Copperhead® ECU

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The Copperhead® ECU is a plug and play replacement (not a piggyback solution) for the stock ECU in the Suzuki King Quad 750. It controls the timing and fuel, and our high energy and repetitive fire ignition allows for crisper throttle response, reduced fuel consumption, while giving substantial power gains.  

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USD$440.07

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The Copperhead® ECU provides a typical 21% power increase from idle to red-line (WOT), and a part throttle power increase of up to 40% over stock. In addition, the top speed limiter has been increased. The ECU also allows for the fuel to be adjusted for aftermarket camshafts and pipes (requires optional programmer interface). Comes complete with the Copperhead® ECU and a machine specific adapter harness containing the EFI specific electronics and mating connectors for that model.

This model is ONLY for machines that have an ECU connector with 3-rows of pins.  Non-North American machines from 2014-2015 have the older style ECU connector with 2-rows of pins.  If your ECU connector has 2-rows of pins, see ECU-SUZ-750-2I-UT.

Features:

  • Repetitive fire ignition delivers hotter spark with longer spark duration for maximum power and virtually eliminates misfires, while giving you easy starts and crisp throttle response. Preloaded performance map allows the machine to run cooler, produce more horsepower and more torque, while minimizing fuel consumption.
  • Shipped with machine specific harness that plugs directly into factory wiring harness. Toggle switch on the unit allows user to switch between two preloaded setups.
  • Default preloaded map keeps factory limiters (reverse / speed) and similar power when the toggle switch is in position #1. When the toggle switch is in position #2, all limiters are disabled, and the timing is optimized for maximum power on 87 octane fuel. Setups and maps can be changed and optimized for different fuel grades via our programming interfaces (sold separately).

Learn why a replacement ECU is superior to an piggy back fuel controller:     

ECU VS FUEL CONTROLLER WHITE PAPER

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Manual

COPPERHEAD ECU INSTALLATION INSTRUCTIONS

Specifications

COPPERHEAD ECU SPECIFICATION SHEET 

Data sheet

Compatible Machine ManufacturerSuzuki
Compatible Machine Year2017
Compatible Machine Year2014
Compatible Machine Year2016
Compatible Machine Year2015
Compatible Engine Size750
Compatible Fuel DeliveryFuel Injected
Dimensions (LxWxH)145mm x 115mm x 42mm (without wiring harness)
Weight675 g
Warranty1-Year
Programming ConnectorDB9 male (proprietary connection)
Input Voltage9-15V (Minimum 11V required to start engine)
Input Current0.9A RMS @ 25C
Output Voltage+/- 170V
Output Energy14.5 mJ
Firing Duration15 degrees via multi-spark
Operating Temperature-55C to +100C

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2014-2018 Suzuki King Quad 750 Copperhead® ECU

2014-2018 Suzuki King Quad 750 Copperhead® ECU

The Copperhead® ECU is a plug and play replacement (not a piggyback solution) for the stock ECU in the Suzuki King Quad 750. It controls the timing and fuel, and our high energy and repetitive fire ignition allows for crisper throttle response, reduced fuel consumption, while giving substantial power gains.  

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