2001 225 Opti

[wheelerg]

Cold start. Fires then stalls.[over and over] If I pull up on the fast idle lever it will stay running.[2000 rpm] When warm starts and runs perfect. On a hot day it will start and stay running. Any ideas?

[boats.net]

Test temp sensors to see if within specs. Run fuel and air pressure tests.

[jayman]

01 opti

Good idea to test air and fuel pressures 90psi fuel 80psi air when running. If you are getting any fuel in the air side your tracker valve or your fuel pressure regulator diaphragm is leaking. Tracker valve is available and the easiest to change. The diaphragm leaks slowly after you shut down causing a very rich startup, that is why it starts better cold. Fuel pressure Regulator diaphragm is no sold separate from the rail.