rpm issue

New poster here! I bought a 2016 Sea Ray 270SD with 160 hours on it a few months back and have had it out several times since. I've noticed that it planes quick and pulls great all the way to 4500 rpms... and that's it. At WOT it will pin at 4500 @ 40mph. Everything about the boat is perfect...

Hello, quick question—05’ 28 ft sundancer— I’ll get the boat on plane just fine and about 5 minutes later, the port side engine will drop from 4K rpm (cruising speed) down to 3.5k rpm’s and won’t let me go over that even if I push full throttle, it cuts off at 3.5k. In order to keep the boat on...

Hi All, Twin ‘98 7.4 454 Horizon Engines looking for some general suggestions on what to check as my port rpms are jumping around a good bit. Not at idle but at running speed up to 400 rpms up and down. Starboard maybe 100 rpm fluctuations. Not sure if injectors are all original or not but...

Hey folks. Out last night and my 2003 240DA (5.0 MPI bravo) failed to get me home. I ran 30min to diner. Got back on. Motored out of the harbor and came up on plane. Within 5mins I was loosing RPMs. From 3200 to 3100 to 3000 came off plane. Shut the boat down restarted and tried again. Same...

Hi I have a 2003 Sea Ray Sundancer 260. I just purchased a boat two months ago and was topping out at about 30 mph cruising speed. Recently the boat now only goes up to about 25 mph and tops out at about 4000 RPM at full throttle. I had barnacles cleaned off the propeller but that hasn’t...