idle issue

Hello, I have an 08' 155 GTI that after it's warm (1-2hour) if I let off the throttle all the way it dies. Runs great (long as I keep the throttle depressed), cold starts great. I've replaced the Idle bypass valve (off brand), injectors (OEM), plugs (OEM), fuel tank check valves (OEM), fuel...

My RPMs are hanging around 3500-4500 around the dock. When you take it out it runs good but at low speed like around docks and putting the boat on the trailer the RPMs Hang and wont die back to idle speed. I adjusted the throttle the day before it had went limp by tightening the screw. But i...

Hey everyone, I'm new here hoping I am doing this correct. I own a 2004 seadoo XpDi and have been having a few problems with it for the last few years and I finally want to do something about it. So here's the problems. When I start the ski up for the first time that day it will...