SPARK TESTER-INLINE-PLUG WIRE Pacific Bay Equipment Sale! from $25.60 Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Small Engine Test Equipment Connects between plug and plug wire Totally Contained Spark Engine will run with tester attached Neon test light verifies proper ignition Handy tool allow safe, easy visual inspection of ignition output