GT-40 idling not steady

[richard]

my 01 SAN GT-40 had 650 HR on it, it's power ful and funtion good, but have an issue idling not steady the RPM will range 650 -1000,and will shut down, especiaaly when engine hot , need press start button longer time to start it, but when engine is cool,start fast, also need advise to check ISC solenoid.

[brian635]

RE: GT-40 idling not steady

i have the same boat, and the same problem...i added some fuel injector cleaner and it has seemed to stop the problem.

[richard]

RE: GT-40 idling not steady

I had use injector cleaner recently, but that don't improve the problem, thanks for your input.

[Grant_West]

Try claning out the flame arrestor (that the screen attatched to the throttle body)
spray some carb cleaner and air threw it.

Also clean out the Air idle screen Its a metal screen that Air flow's threw while under Idle