While doing some pre checks before a fishing trip the no oil light and alarm on my 225 came on. Alarm went off after about 10 seconds. which is normal, light stayed on. The motor was hooked up to a water hose and I could see from the exhaust it was getting oil. But to be on the safe side I purged the oil line and also checked oil for moisture(none evident). It takes about 3-4 minutes for the alarm to come on when I shut the motor off and restart it. When I eased the rpm's up to about 1500 the light blinked a few times and the alarm again came on. Aggrevating!! 