How to Install EZ-STEER Power Steering Kit on Polaris RZR 900

Length: 16:07
Created: May 22, 2019

Today we’re going to install our EZ-STEER Power Steering Kit. This Installation will apply across the board for the RZR 1000, RZR Turbo, and the RZR 900. Today we’re going to install it on the RZR 900, so let’s get started.

00:20
The first step is to remove the front wheels and tires. Then remove the hood. Once the hood’s removed, remove these two screws. We have a flip windshield on this machine so we have to remove the lower portion of it. Once it’s removed, push the dash forward toward the inside of the machine, and start unplugging the connections. Then, remove the dash from the machine.

Next, remove the steering wheel. Remove the center piece off the steering wheel and loosen the nut. Take a socket (we’re using a 19 mm), lay it on the nut, and give it a couple hits with a hammer. Remove the steering wheel off the splines on the steering shaft. Now remove the cover by disconnecting these two bolts. Set it aside.

Remove the two plugs on top of the factory motor. Then, remove the harness off the backside of the motor. Now, remove these two bolts from the tilt steering assembly and let the assembly hang. Disconnect the bolt holding the steering shaft to the power steering motor. Once the bolts are removed, pull the assembly off the motor and set it aside. Disconnect the lower steering shaft by undoing this nut and removing the bolt.

03:44
Remove the four nuts holding the assembly to the pedal. Once you have them removed, you can remove the motor. Now remove the lower steering shaft from the rack and pinion. You may have to rotate it in order to get a ratchet on it. And you may have to rotate it again to get the bolt out. Then pull the steering shaft out from the inside. When removing the shaft, you may have to spray some lubricant on it. If it doesn’t come loose with some lubricant, you may have to take a pry bar and stick the blade of the pry bar in this gap here to spread it open. It should come right off the rack and pinion.

Next, we’ll install our motor mount to our support. Be sure that the angled portion of the support is facing downward and match it up to the angle on the motor mount like so. Take the M8 by 20 mm hardware and M8 nut and be sure that the bolt head is facing outward. Fully tighten all the hardware. Then get the motor and install it to the motor mount. Don’t fully tighten the hardware yet because you will have to make some adjustments. We’re going to continue the install without using our motor cover. If you’d like to use it, we provided holes in the motor mount. You will have to cut off this section here due to the EZ-STEER motor being bigger than the factory one.

06:32
We’re going to install the lower steering shaft now. Make sure that the fixed end is going towards the rack and pinion. Take the bolt out, and insert the shaft through the firewall. After you push the steering shaft through the hole in the firewall, make sure that the splines on the rack and pinion line up with the splines on the steering shaft and install your bolt.

Now we’re going to install the motor and motor assembly to the lower shaft and to the studs that hold the foot pedal. Now tighten everything up.

07:45
Next we’re going to install the tilt steering assembly and the upper steering shaft. First, install the upper steering shaft to the power steering unit. Remove the bolt, install it on the splines, and take your bolt and thread it in hand tight. Flip the tilt steering assembly up like this. Take the factory spacers and install one here. Install the shaft then take the other spacer and sit it right there. Put this back in the factory location using the factory bolts. Install the nuts for the tilt steering assembly. Tighten them and install the factory shoulder bolt to the tilt adjust. Then fully tighten it.

09:37
Now it’s time to reinstall the steering wheel, but before we do this, you want to make sure your rack is centered. Get your steering wheel on there straight. Reach down, grab the upper steering shaft, and push it up so you can get your steering wheel started on the splines. Then thread your nut by hand but keep it loose. Make sure the steering wheel, rack, and wheels are straight. When everything looks straight, fully tighten the nut. Then tighten both of the pinch bolts: the one attaching the upper shaft to the EZ-STEER unit, and this one here. Once everything is tight, install the steering wheel cap.

Now we’re going to install the ECU to the machine using the provided bracket and hardware. The bracket will lay up against the ECU like this. This is going to install to the outside of this frame bracket like so. The bracket is going to go inside with the screws going through the bracket and into the ECU. Be sure that the big plug is facing inward towards the machine and then fully tighten all the hardware.

11:30
Before we install the wiring harness, remove the grommet. Make some slits where it’s perforated. Then reinstall it. Before we install the harness, there are a few things we want to tell you. These harnesses are the same across the board for any 400 watt ECU. So you’re going to have extra wiring. You can coil it up, or if you’re pretty slick with wiring, you can cut the connections down to shorten the harness. Also, there’s going to be a blue wire that’s not going to be used. You can coil this up or trim it.

Push the red, black, and wire through the hole in the grommet. Just set these aside for a moment. Take the plugs and plug them into the ECU. The big plug goes here. The small one goes to the one directly below it. Push them in until you hear a click, otherwise it’ll make a bad connection. Then take the rubber band off of the harness for the motor.

13:26
We have the big plug and the small plug now. The big plug goes right here. The small plug goes here. For this application, we’re going to cut the spade connector off and use the provided eyelet connector. Make sure the connection is nice and tight, and then wire it to the bus bar. The far left post is the key on source, so take the white activation wire and install it on the post. Fully tighten the nut. The center post is for the ground and this one will be the battery or the all-time hot. If your bus bar is hooked so that it has power going to it, you’ll have to hook the black wire to the center, which would be ground, and the red to the far right, which would be hot. If not, run these two wires directly to your battery.

Once your harness is wired either to the bus bar or the battery, reinstall all factory components and make sure things are tight. Then we can go outside and test the power steering out.

And that’s how super easy it is to install SuperATV’s EZ-STEER Power Steering Kit on this Polaris RZR 900. For more information on this power steering kit, or any of SuperATV’s great products, give us a call at 855-743-3427, or check us out online at SuperATV.com. Thanks for watching and have a great day.