Joe Grace of Performance Watercraft-Wildwood SeaDoo and his son Chris Grace a professional freestyle rider/VP of US sales for Krash USA , took on a project to be the first ever to power a standup jetski with a Seadoo Spark fourstroke engine. Joe’s a master tradesman of just about anything, and his skills caught the eye of The Watercraft Journal Magazine where they wrote up a piece showcasing the awesome build!
You can check out his work here in the article link below:

Inside Wildwood Sea-Doo’s Spark-Powered Krash FootRocket