Good to know! So have they fixed it already? If so, can you let me know your dealers name so I can have my dealer get in touch with them if needed. After he returned my call the next day and didn't leave a message, I've been trying for 3 days to reach the guy at Yamaha with no success.I had the same issue. My dealer looked at the steering and he and Yamaha found it was an electronic controller. Yamaha has sent them replacement parts to correction.
Poor dealership.Finally got back in touch with Yamaha. They said to take it back to the dealer and then have the dealer call Yamaha so a tech there can help them work through it. Would have been nice for this to happen before I picked it up from the dealership. Instead, I had to do the leg work to get in touch with Yamaha.
Still waiting to get mine fixed. Hopefully I can get it back to the dealer in the next week or so.thanks for this thread. My machine does not pull to the right but it turns alot easier to the right than left and I'm guessing its the same controller. Unfortunately I read this after I left the dealership that's two hours away.
What TIRES are on your machine?...see my post a couple posts up...mine had a terrible pull to the right with the factory dirt commanders. I tried everything, dealer checked electrics, power steering unit, rotated tires, checked brakes for pull, alignment, etc....in the end once I bought a new set of tires, the machine goes perfectly straight now. If you look at the lugs on the dirt commanders, you can see how they will always favor the right side (shape/direction of lugs) and rotating won't help, neither will remounting the tire backwards...I need a little help: So my steering issue is still on-going. Dealer ordered a new power steering unit and installed it and called me and said still no difference. They are calling Yamaha to see what else can be done. In the meantime, I went and picked the unit up so I could at least enjoy it a little (it's been at the dealership for 3 months). I got it home and thought I'd try to see if I could do anything with it. I removed the steering shaft from the power steering unit and rotated the steering wheel a bunch of turns in the direction that it was pulling to see if I could "center" the power steering unit. Put it all back together and it seems alot better. Not perfect but better. However, the steering wheel doesn't have the same amount of rotation in each direction (it was also this way before I took off the steering shaft). It turns about 1/4 turn less to the right than to the left. My first thought is to pull the steering wheel and rotate it a couple of teeth so it turns the same amount in each direction and then re-align it on the new centered point. However, the tie rods currently both have about the same amount of thread showing so if I do this, they will be really uneven. The wheels turn about 3 inches more to the left (measuring the movement at the front of the tire) than it does to the right. Can anyone tell me if their machine does the same thing as far as turning one direction more than the other. Kind of leery making any changes now since I finally have it to the point where you can take your hands off the wheel and it doesn't pull hard right. Any help is appreciated!
The pull to the right seems to be much better with this power steering unit. The old unit would pull to the right with the wheels off the ground so tires weren't the problem with that. Also, I drove another base unit at the dealership with the same tires and the steering was perfect so I know it's possible. Not to say that the tires can't cause a pull, just not the problem I'm trying to diagnose now. What I am looking for is if anyone else has the same issue of the wheels turning one direction more than the other. I know this can be fixed by an alignment but I don't want to go changing the alignment if it is going to make everything else worse just to get the steering even.What TIRES are on your machine?...see my post a couple posts up...mine had a terrible pull to the right with the factory dirt commanders. I tried everything, dealer checked electrics, power steering unit, rotated tires, checked brakes for pull, alignment, etc....in the end once I bought a new set of tires, the machine goes perfectly straight now. If you look at the lugs on the dirt commanders, you can see how they will always favor the right side (shape/direction of lugs) and rotating won't help, neither will remounting the tire backwards...
If you have DIRT COMMANDERS...borrow a set of DIFFERENT mounted tires (maybe dealer will do this for you?) (but NOT another set of dirt commanders...it's not that the tire was defective, its the LUG DESIGN) and see what it does! Just FYI...I bought the Interco Sniper 920's and am very happy with them. quiet and smooth on pavement which unfortunately is where i ride most of the time.
Thanks for the info. Definitely sounds like a similar problem. That was exactly what it felt like all the time with my "factory" power steering unit. I have noticed when aligning it that the drivers side front wheel is not the same distance in relation to the back wheel as the front left wheel is. In other words, when I take a string down the side of the machine and make sure that it is 2" from the front and back of the back tire on each side and then measure how far it is away from the front tires, the front tire measurements aren't equal to each other. What I'm kind of wondering is that maybe my alignment is correct but my steering rack isn't centered. When the steering rack is centered (which is how it was when I had all the problems with my power steering), maybe the power steering has to work harder to turn left than right because of the difference in the geometry of the wheels. Maybe I'm way off but now it seems to all be good except for turning further left than right.Not much help but here is what I've experieced a few times. When turning left it almost feels like diff lock is engaged. Its harder to turn then just no power steering at all. It only does it for a second of two and returns to normal steering effort. I have not noticed it while turning right. It does not pull one way or the other and drive straight. Alignment is good. It happens randomaly even on level surfaces. Its only done it a few times and I'm sure the dealer won't be able to replicate it. My only thoughts are that my battery has drained on my twice (thanks AP) and either that caused an issue with the EPS (like maybe it need to relearn stuff) or my battery isn't as good as it used to be and not putting out enough for the EPS even though I'm showing 14.4V on the AP.
Hate to break the bad news but I just had my 2020 X4 in for the same problem. Turns out the sensor that tells the computer how much power to send to the electric power steering motor was bad. Unfortunately the sensor is not replaceable and the whole power steering gearbox required replacement. I dodged a bullet because mine was covered by the YES warranty so $0 out of pocket. If I didn't have the warranty repair would have been close to $2000. Part alone is around $1500. Best of luckI had been addressing this in the "steering wheel off center" thread but thought I should put it in a separate thread. My RMAX2 pulls right as soon as you let your hands off the wheel. It is also easier to steer to the right than the left. If you disconnect the power steering, it is fine. Have a call into Yamaha and they did try to get back to me but I'm playing phone tag with the guy now. Will let you know as soon as I find out anything but let me know if you are having the same problem. Here is a video that Rod12056 found that shows exactly what I'm experiencing: