Simple to use just remove rubber boot from spark plug, insert tester & place tester boot on plug. Must-have diagnostic tool for any engine with a spark plug. Turn the engine over if ignition is being sent to the cylinder, light in tester glows.
12V Cars Motorcycles Boats Dual Plug Spark Ignition Plug Tester Diagnostic Tool
Graphene Ceramic Spray Coating for Cars, Motorcycles, Boats 9oz Sealant
High Performance Adjustable Timing Light - Ideal for Cars, Motorcycles & Boats
12V EVAP Smoke Machine for Cars, Motorcycles, Trucks, Boats & ATVs
Multi-Use Electrical Repair 399pc Kit // Quick Fix Cars Trucks Motorcycles Boats
BT15 Car Battery Load Tester 6V-30V Analyzer for Cars Trucks Motorcycles Boats
