2018 G25 NCRS Issue

[Jsmith301]

I purchased a new 2018 G25 in July of 2018 and have had numerous issues from day one. I know everything is under warranty, but ****..... At any rate, most everything has been corrected with the exception of the NCRS and thruster. In regards to the NCRS, I’m wondering if anyone has experienced porpoising while just cruising at say 16 to 21 mph. The boat will be on a good plane and for no apparent reason the NCRS will kick in and raise the bow up high and then lower it back down. You can see the NCRS icon on the screen indicating up and down. The boat has done this from day one and it seems to be ok at speeds higher than 21 mph. This issue was supposed to be fixed by the dealer along with Nautique before the season started, but was over looked I guess. In any case, I’m just wondering if anyone else has experienced this same issue with the NCRS. If so, how was it fixed? Thanks in advance....

[charlesml3]

Sounds to me like the Plane Assist is kicking in. Try turning that off and see if it does the same thing.

-Charles

[NautiqueJeff]

How do you have your NCRS set? I assume you're in Back to Dock mode if you're just cruising, correct? I suggest setting NCRS to ZERO in the Back to Dock profile. That will keep NCRS fully-deployed (instead of fully-retracted, like setting it to FIVE will do). The setting of FIVE will keep the bow as high as possible (and create the biggest wake), while ZERO will keep the bow down, usually giving you a smoother ride and surprisingly giving better fuel efficiency as well.

A speed of 16 would be right at the breaking point for a G25 as far as being completely on plane, so I could see plane assist kicking on and off if your NCRS setting is anything other than ZERO.

[Jsmith301]

Thank you for the replies. Yes, I am in back to dock mode and even tried no mode per the dealer’s recommendation for just cruising. However, it still does the porpoising even up to speeds of 20 or 21 mph.

I keep the NCRS on 0 with the plane assist on high. When I turn off the plane assist, the boat mostly plows through the water with the bow high, but it does stop the porpoising. The NCRS does not seem to be working to keep the boat planed out. When I charge it from 0 to 5, I’m not seeing any noticeable movement in the bow. The dealer tech put the boat in dealer mode on my lift a few weeks ago and the plate did move up and down. He thinks it may be an actuator, but they have to get the boat to the shop to change out. The season is almost over and I don’t want the boat in the shop for a month.

[ST3]

Keep us posted. This should be interesting to many.

For clarification when you say porpoising do you mean a steady rocking of the bow up and down or do you see it rise slowly then gently push down? (The screen will show the plane assist icon when doing this = picture of the plate). If it is the later then the advice previously given makes sense. Go with NCRS at 0 and turn off plane assist.


Sent from my iPhone using PLT Nautique

[Jsmith301]

I can be cruising on a good plane for 5 minutes and for no reason the bow will just come up and then back to a good plane. Sometimes it does it continuously as other times it’s more sporadic. People in the boat think I’m playing with a trim switch. Lol.

[kylant]

my gs22 does this. it is always in back to dock, or just cruising. like others have said, just turn off plane assist or set ncrs to 0.
if you find a fix, let us know.
thanks

[Jsmith301]

Thank you for the reply. I do keep the NCRS at 0, but its like the plate is working then releases and the bow raises way up. If the plane assist is off and the NCRS is on 0, the boat should be on its best plane - right? However, my bow will just stay high.

[2019 G21]

My 2019 G21 did the same thing while in the factory wake skate setting. Every time I used that one setting it would cycle up, then down over a 30 second period over and over again. I got suggestions to tweet the setting a little. I went in to the factory skate setting and edited it by changing the speed by .1mph. The boat never cycled again after that. Also, my factory back to dock setting had NCRS at 5. I changed it to 2 and it made back to dock much better with less porposing.

[nyryan2001]

NCRS 0 = plate fully extended and pushed down, bow goes down.

NcrS 5 = plate retracted, up high, bow high.

Auto NCRS kicks in (if you have it at any NCRS setting other than 0) at about 13mph to 18mph to NCRS 0, to allow a quicker launch with heavy ballast weights. At about 18mph your set NCRS setting (if you have it at anything other than 0) it will go to it (ie 1-5) and put the bow up high for a bigger wake.

i seriously might spend 1-2 seconds between 14-20mph. Like ever. You cruise across the lake at 18?

1. Adjust your NCRS to 0. Use manual setting to learn what they do.

2. Post up a video showing us doing it.

[Jsmith301]

Thank you for the reply. I saved my back to dock mode NCRS to 0 and it still goes up and down. Also, tried using no mode with the NCRS at 0 and it still does it. I think mine is doing it about every 30 seconds too.

[Jsmith301]

Hi nyryan2001, thank you for the reply. The water seems to be getting rougher every weekend with more and more boats on our lake so we cruise at around 18 to 20 mph a good bit especially if there older folks in the boat. Also, my 6 year old likes to be pulled at about 18 mph on his knee board - NCRS 0 & ballast empty.


The crazy thing is that sometimes it rides great (bow down) at these speeds and then for no apparent reason it starts cycling up and then down.

I have had two different service techs ride in the boat and both were puzzled at why this issue was happening. The last service tech to ride in the boat a few weeks ago believes that it may be bad actuator. However, it will need to go to the shop for 2 weeks or so to diagnose and fix the problem. Our season is almost so I was checking to see if anyone else has experience this same issue.

[NautiqueJeff]

My bet is that whatever sensor is used to determine whether the boat is on plane or not is malfunctioning. Shouldn't be an actuator issue. All that does is move the NCRS, and that seems to work fine. It is whatever is TELLING the actuator to move the plate that is having the issue. It has to be a sensor signal issue or a software/firmware issue.

[Jsmith301]

Hi NautiqueJeff, The actuator does seem to be working as far as going up and down. Every time I have the issue, the boat will be running on a good plane at say 18 mph for 5 minutes or so and for no reason the bow comes way up and then back down, over and over. Its like the boats trying but can’t hold the bow down any longer. I’m going to try to get it to the dealer tomorrow.

I noticed where you have owned some G’s. Have you ever had this happen at 18 mph or any other speed?

[Jsmith301]

Ok, guys my dealer just came out and he got on the phone with Nautique while we were in the boat. To stop this from happening, you need to set the cruise speed at 18 mph. This stopped it from cycling up and down with the plane assist on. Also, worked at lower speeds, such as 16 mph with the cruise on 16. Hope this makes sense.. I think there needs to be some firmware update to fix. I think it’s a little crazy that I would have to set the cruise control to stop this from happening.