Suzuki DF225 mystery

[kmoose]

I agree with Ed that it may be the neutral switch but you can also have worn or out of adjustment linkage. Not sure how many hours are on yours but the elaborate cable and rod system does wear and adjustment has a pretty tight spec.

Also, don't forget the dreaded white wire hooked to the battery from the harness. If the connector is compromised by corrosion it will give you just as many issues as a bad IAC servo.