The Tempest AT5K™ Aviation Spark Plug Resistance Tester quickly and accurately checks spark plug resistors and quickly displays the results. AT5K means: “At 5000 Ohms” change that plug!
Note: The AT5K only checks resistance values. It does not replace, nor is it a substitute for, other tests required to determine a spark plug’s condition.
Checking spark plug resistance is worth the time it takes because excessive resistance causes:
- Hard starting
- Skipping, missing, excessive fuel consumption and pollution
- Roughness in turbocharged engines
- Roughness during lean of peak operations
- Roughness at high altitudes
- Spark plug fouling
- Engine oil contamination from excessive carbon and unburned fuel entering the crankcase
- Unnecessary electrical stress on ignition leads, contact points, capacitors and magnetos
- Costly, unnecessary spark plug maintenance