FUNCTION: The engine spark tester is a diagnostic tool for any engine with a spark plug, which can quickly and easily diagnose ignition/engine outboard motor issues or a fault in the fuel delivery system.

APPLICATION: For all internal & external combustion engines, cars, trucks, motorcycles, lawnmowers, chainsaws, trimmers, snow-blowers, generators etc.

HOW TO USE: Simply connect the tester between the spark plug and the plug wire, if spark is being sent, the tester will mirror the spark and light up - Find dirty spark plugs, defective points, bad cables or connections, etc.

CLEANING NEEDLES AND BRUSHES: Perfect for clearing out blockages or obstructions in the narrow passage of auto motorcycle carburetor.

MATERIAL OF NEEDLES & BRUSHES: Stainless steel & Nylon, spiral bristle make it easy to get access to the inner side, making the washing clearly and thoroughly.