The Supplied Harness is 3 metres long can be made longer for a little extra cost. The harness is made of premium grade materials and is assembled by a Senior Electronics Engineer. Take a look at this video clip to see how it works. Seadoo Spark Maintenance Harness - YouTube.The item "SEADOO SPARK MAINTENANCE HARNESS. ++ Run your MOTOR with the TOP DECK removed +" is in sale since Sunday, January 10, 2021. This item is in the category "eBay Motors\Parts & Accessories\Personal Watercraft Parts\Other Parts". The seller is "cat10_5" and is located in Abingdon. This item can be shipped to United States.