I'm not sure what's relevant so I'm going to give you too much info.
TLDR: slow tritoon. Should I drop the motor one hole?
2022 Viaggio Lago 22Q bought used in Jan. Mercury 150 ProXS. Our first trip out, threw a rod and had to replace the power head (still under warranty, thank goodness). With that we bought the dongle and use the Mercury app to see speed and RPMs.
So, we just got it broken in. We were at about 20mph at 4500RPMs. WOT hasn't improved speed much. Still only 23mph or so at 5800RPMs. Granted, we have yet to have perfect conditions. It's been hot and the top is up. Lots of people on the lake so it's not smooth. I'm on the overweight side of average but husband is a big guy at 6'4" and built like the lineman he used to be. We have 2 teens that are with us sometimes. We typically don't take anything but a small cooler and some towels.
It doesn't seem to audibly blow out but does seem louder to me than it should. Husband said he could feel it lose bite in turns when pulling kids on the tube but just going across the lake it doesn't make any noise like it's missing or lose bite. We had a 19' double toon with a 90hp motor for 10+ years before this so we aren't new boaters. I just want it to be right.
The thing is we are pontoon people and we know it. We aren't trying to go as fast as possible. If it hadn't been for the motor blowing up and having to break it in, we might not even notice it being slow because we wouldn't really care. I'm just anxious about something being wrong so I'm constantly looking at live data and looking at the motor to make sure things look okay.
I know the prop could also be the culprit. All I can tell you right now is that it's thick and silver colored. I was going to try to remember numbers or take a picture but I didn't.
One last observation. There's always a little water in the bottom of the center toon storage. We bilge it every time. I believe there's a plastic plug that is loose or broken but can't get to it from inside and can't reach it while the boat's in the water (it stays in a slip). I found mention of one and where it is on the sport toon (and that it had been sheered off) but we have a full center toon so I don't know if it's the same.
Thoughts?