DRIVE Neutral Steering Assist - 2024 and newer

[TommyMcK]

You can correct that reverse by making some small adjustments to the linkage on the buckets.

Actually, on the DriveX boats you can't (at least according to the service manual). It involves a calibration process using YDS. If you simply adjust the buckets it evidently messes up the servo control.

 

[FSH 210 Sport]

Actually, on the DriveX boats you can't (at least according to the service manual). It involves a calibration process using YDS. If you simply adjust the buckets it evidently messes up the servo control.

Seems weird that would be the case.. I’m talking about making an adjustment of a few mm’s, that’s all it takes to go from a rear or front bias to neutral. On my boat it’s like 1/2 to 1 revolution of the connector.

 

[TommyMcK]

Seems weird that would be the case.. I’m talking about making an adjustment of a few mm’s, that’s all it takes to go from a rear or front bias to neutral. On my boat it’s like 1/2 to 1 revolution of the connector.

I didn't actually try it, so I can't say for sure that it doesn't work...just the procedure outlined in the service manual says not to do it. There enough things that cause the BCU to lose its mind that I'm hesitant to try it.

 

[Madman]

I have both a 23 222xd in Maryland and a 24 255xd in Florida. My comments are all based on my ;24. Your observations are consistent with mine. When you are in the middle of your lake, though may not realize it, when you are in neutral, your boat is likely moving slightly in reverse.

Neutral steering assist is something different. It is meant to duplicate the fin that doesn't exist on our boats and give you steering control when moving forward but not under power. It only impacts control when you are moving forward at 6 kts or more.

On my '24 255. when in neutral, the gates are slightly in reverse, which explains the controls

Actually, one of the first things I noticed about this boat is that neutral is actually neutral. When we’re coming off the lake, I drop the wife off, move away from the dock and tidy up the deck (as long as it’s not windy) while she gets the trailer. The boat just sits there. I definitely couldn’t do that with our 2010.

I could be wrong, but I really feel this is a programming issue. In my mind, there’s nothing normal about a boat that responds opposite of the driver’s input. It doesn’t make sense and doesn’t align with what Yamaha says about the feature. I guess we’ll just have to see what Yamaha has to say. Worse case scenario… they fix the damn off button! At least then, I could get back to my old docking and recovery procedures!

 

[FSH 210 Sport]

I didn't actually try it, so I can't say for sure that it doesn't work...just the procedure outlined in the service manual says not to do it. There enough things that cause the BCU to lose its mind that I'm hesitant to try it.

Okay, can you post a picture of the service manual procedure please ?

I was chatting with @drewkaree tonight about this issue and we both think that there is only the throw or position of the electric actuator and its range motion for the computer to see, there is no sensor on the bucket to let the computer know what position the bucket actually is in relative to the opening of the jet pump. So, if you were to make small adjustments to the actuator rod adjustment right at the bucket in search of a better neutral there should be no problem.

Further, there are more than likely hall sensors within the actuators that measure the current flow of the bucket actuator, and if the current is too high, E.G. there is sand or grit in the bucket keeping it from moving freely enough, it will cease trying to move the actuator to keep from damaging it, and will throw a code alerting you that there is a problem.

 

[Neutron]

Okay, can you post a picture of the service manual procedure please ?

I was chatting with @drewkaree tonight about this issue and we both think that there is only the throw or position of the electric actuator and its range motion for the computer to see, there is no sensor on the bucket to let the computer know what position the bucket actually is in relative to the opening of the jet pump. So, if you were to make small adjustments to the actuator rod adjustment right at the bucket in search of a better neutral there should be no problem.

Further, there are more than likely hall sensors within the actuators that measure the current flow of the bucket actuator, and if the current is too high, E.G. there is sand or grit in the bucket keeping it from moving freely enough, it will cease trying to move the actuator to keep from damaging it, and will throw a code alerting you that there is a problem.

There is a magnet sensor on the end of each gear inside the actuator assembly. I have taken them apart to replace parts inside. So any adjustments on the nozzles or buckets wont effect the sensor. What could cause a problem like @TommyMcK stated would be if the bucket had resistance from the thrust when it was in movement.
There is a relearn procedure after any repairs or services done to the pumps and should be performed afterwards. And its done with the engine running

 

[drewkaree]

There is a magnet sensor on the end of each gear inside the actuator assembly. I have taken them apart to replace parts inside. So any adjustments on the nozzles or buckets wont effect the sensor. What could cause a problem like @TommyMcK stated would be if the bucket had resistance from the thrust when it was in movement.
There is a relearn procedure after any repairs or services done to the pumps and should be performed afterwards. And its done with the engine running

Is the relearn done to recalibrate the range of motion then, or is it to teach the computer the position of those magnet sensors?

It sounds similar to my car on startup, where it moves the headlights to do a self-test of the active leveling function, only, in the case of the boat, it would be determining the position of neutral.

I think I'm missing how all these things come together, and trying to grasp what's going on.

 

[Neutron]

Is the relearn done to recalibrate the range of motion then, or is it to teach the computer the position of those magnet sensors?

It sounds similar to my car on startup, where it moves the headlights to do a self-test of the active leveling function, only, in the case of the boat, it would be determining the position of neutral.

I think I'm missing how all these things come together, and trying to grasp what's going on.

I dont know what the actual function of the relearn procedure ant what it relearns 100%. I assume from what it does after you hit "start" it moves from the Neutral position slowly up then slowly down, then fast up and down and its complete. It must record the stops in reference to the magnets and sets it to the bcu.
Funny thing is when looking through the parts diagrams for these new boats, nothing is available for the bucket control.
Seems a little worrisome

 

[anmut]

Reading through this posts makes me appreciate the simple cable system I have on my boat...

 

[jacoviii]

Its 100% due to the new revers buckets. the old ones were part of the nozzle. The new one is stationary. This changes how the water is directed. Vs the older units.