Product Overview
Spark Tester

Ensure peak performance and reliable starts for your 8-cylinder outboard with the CDI Electronics Spark Tester. This essential diagnostic tool quickly and safely identifies spark plug and ignition issues, saving you valuable time and money on unnecessary repairs. Don't let a faulty spark leave you stranded; pinpoint the problem with ease and get back on the water faster with the CDI Spark Tester.
Key Features
- **Adjustable Spark Gap:** Test various spark plug gaps (1/8", 1/4", 3/8", 1/2") for precise diagnostics.
- **Heavy-Duty Wiring:** Securely mount the tester in any position for optimal viewing and testing.
- **Enclosed Design:** Minimizes the risk of igniting gas fumes for enhanced safety during testing.
- **Compatible with 8-Cylinder Engines:** Specifically designed for 8-cylinder outboards, ensuring accurate readings.
- **Replaces Multiple Part Numbers:** Covers a wide range of older part numbers (511-9766, 850439, 850439T, 850439T 1, 91-850439) for convenient replacement.
- **Uses Existing Spark Plug Wires:** No need for additional adapters or specialized wires, simplifying the testing process.
- **Durable Construction:** Built to withstand the harsh marine environment for long-lasting performance.
What's in the Box
- CDI Electronics Spark Tester (511-9766)
Specifications
The Captain's Take
As a seasoned captain, I know the importance of reliable engine performance. The CDI Spark Tester is a must-have tool in my onboard arsenal. It's quick, easy to use, and has saved me countless headaches over the years. Being able to quickly diagnose a spark issue without having to haul the boat back to shore is invaluable. I highly recommend this tester to any boater who wants to stay on top of their engine maintenance and avoid unexpected breakdowns.