The CDI Electronics 214-7778-K2 Quick Strike Ignition Kit from Buckshot Racing #77 is an advanced, high-performance ignition system engineered to optimize the combustion efficiency and reliability of Mercury, Mariner, Mercury Racing, and Marine Mercury Hi-Performance outboard engines manufactured between 1976 and 2001.
 
Compatible with 135–300 horsepower 16-amp ignition systems, this kit is a direct upgrade over legacy OEM ignition configurations that often underperform in high-RPM marine applications.
 
Advanced Spark Control for High-RPM Performance
 
The core enhancement in the 214-7778-K2 kit lies in its ability to sustain spark intensity and timing accuracy well beyond 7,000 RPM—a performance ceiling that frequently exposes the limitations of original equipment ignition components. This capability is powered by the inclusion of two CDI 214-7778-R2 switch boxes, which serve as direct replacements for Mercury OEM part numbers 332-7778-A2, 332-7778-A4, 332-7778-A6, and the comparable 332-7778-A14.
 
These switch boxes incorporate CDI’s proprietary Quick Strike ignition circuitry, which significantly reduces timing delay and drift—ensuring faster spark delivery and more reliable combustion at all RPM ranges, particularly under full-throttle and high-load conditions.
 
Stable Power Delivery via High-Efficiency Stator Design
 
The 274-5456-S15 stator is engineered to generate a consistent and clean AC output for both the ignition system and onboard charging circuits. Its dual winding architecture enables optimized current delivery across both low and high RPM ranges, eliminating the voltage fluctuations often associated with aging OEM stators.
 
This stable output ensures the switch boxes receive uninterrupted power, directly translating to better engine performance, reduced misfiring, and enhanced ignition reliability in demanding marine environments.
 
Precision Ignition Timing Through High-Sensitivity Trigger
 
The 134-6456 trigger included in the kit plays a critical role in ignition timing, capturing precise crankshaft position data from the flywheel and transmitting accurate signals to the switch boxes. This component offers improved sensitivity and response time over older OEM triggers, enabling tighter synchronization between piston movement and spark timing.
 
The result is more efficient combustion, minimized knock, and better fuel utilization—particularly at high revolutions where even minor timing discrepancies can lead to power loss and mechanical stress.
 
High-Energy Spark Output and Combustion Efficiency
 
Legacy OEM ignition systems often suffer from spark fade at high RPMs, resulting in incomplete combustion, fouled plugs, and increased emissions. The CDI 214-7778-K2 system addresses these deficiencies by delivering a higher-energy spark with a faster rise time. This ensures more complete fuel burn per cycle, increased horsepower output, improved throttle response, and reduced carbon buildup in combustion chambers. The result is a noticeable improvement in cold-start reliability, idle stability, and overall engine responsiveness.
 
Marine-Grade Construction for Harsh Environments
 
Built using marine-rated materials and sealed to withstand moisture, salt exposure, and prolonged vibration, the CDI ignition components offer substantial durability gains over aging OEM designs. This makes the kit especially well-suited for saltwater applications and high-humidity environments where corrosion and electrical degradation are common failure points in older ignition systems.
 
Simplified Installation and Diagnostics
 
Installation is straightforward for marine technicians familiar with Mercury ignition systems. Careful flywheel alignment, clean terminal connections, and preliminary testing using a DVA (Direct Voltage Adapter) meter are recommended to verify voltage outputs and component integrity before engine start. Once installed, users typically observe quicker starts, smoother throttle transitions, and more stable performance across the full RPM range.
 
Replacement for Mercury OEM Ignition Components
 
The CDI Electronics 214-7778-K2 Quick Strike Ignition Kit is designed not only as a replacement but as a comprehensive upgrade for OEM Mercury A11 triggers, A36 stators, and A14 switch boxes. Field-tested across various engine platforms, the system has demonstrated superior ignition stability, power output, and long-term reliability—making it an ideal solution for marine professionals, racers, and high-performance outboard operators seeking to modernize and optimize their ignition systems.
 
Each Quick Strike Kit includes one (1) Stator 5456-S15, one (1) Trigger 6456, and two (2) Switchboxes 7778-R2 . (CDI MSRP $1,427.99)
 
Contact Mike Hill at mike@buckshotracing77.com or +1-714-697-1716 for tech support