28 I had one of my 2006 Sea Doo RXPs out on the lake last weekend, when I noticed it was running kind of rough. The engine didn’t sound right, and it felt low on power. Every now and then, I’d get a burst of full power, but then lose it […] HowTo: Sea Doo Running Rough? Change the Spark Plugs FirstThis entry was posted in DIY Reference Sea Doo and tagged DCPR8E dielectric engine running rough losing power replace replace spark plugs RXP Sea Doo spark plug on July 10, 2013 by Steve Jenkins (updated 3435 days ago)