Fiada 9-Piece Compression Tester Kit for Cars & Motorcycles — 300 PSI Dual-Unit Gauge, Spark Plug Tester (Black)

Fiada's 9-piece compression tester kit is a complete, handheld solution for checking cylinder pressure and verifying spark delivery on cars and motorcycles.

Designed for DIY mechanics and small repair shops, this set combines a 300 PSI dual-unit gauge with multiple adapters and a spark plug tester so you can quickly assess engine health. The tools fit most spark-plug-threaded cylinders and the kit stores neatly in a protective ABS case. Use it to isolate low-compression cylinders, identify ignition faults, or confirm engine sealing after maintenance.

How do I perform a compression test with this kit?

Remove the ignition and fuel supply as recommended for safety, then thread the correct adapter and hand-start the gauge into the spark plug hole. Crank the engine with the throttle open and read the peak pressure on the 3" dial; repeat several times for consistent results.

• Choose the matching brass or rubber cone adapter for the spark plug thread.
• Use the 14" extension hose to reach deep or recessed plugs.
• Crank four full revolutions for an accurate pressure reading.
• Compare readings across cylinders to find anomalies.

What can the spark plug tester tell me about ignition problems?

The included spark plug tester visually shows whether a spark is being produced under engine-like conditions. It helps you quickly rule in or out coil, lead, or plug failures and can indicate poor plug gaps or contaminated plugs.

• Connect the tester in series with the spark plug wire to observe spark intensity.
• Look for weak, intermittent, or absent sparks to pinpoint ignition faults.
• Use in combination with compression results to separate ignition from compression issues.

Is the gauge accurate and durable enough for regular garage use?

The kit features a 3" dial rated to 300 PSI with dual units (PSI and kg/cm²) and a rubber-shielded housing to resist shocks. The gauge face has an anti-scratch coating, and all fittings are brass or reinforced rubber to tolerate workshop conditions.

• 300 PSI range covers most gasoline and light-diesel engines.
• Rubber protection reduces impact damage during use.
• ABS carrying case keeps adapters and hose organized and safe.

Who is this for: The Fiada 9-piece kit is ideal for home mechanics, mobile technicians, and small shops who need a cost-effective, portable set for routine engine diagnostics. It’s suited to cars, motorcycles, ATVs, and many small engines where spark-plug-style cylinder access is available, and it helps separate compression, sealing, and ignition issues without expensive diagnostic equipment.