my boat i a 90 stratos with a 90 200 johnson. When i am taking off i will trim down give the motor throttle and it acts very week i go full throttle and it takes about a minute at full throttle and then the rpm start incresing and then bam it will start running like it should. As soon as it gets on plane for a few minutes the thing starts beeping until i stop and put it in nuetral. The water pump pressure is good the oil is good is this maybe a rev limiter from giving it full throttle at first? the beeping comes in second intervals and is steady.