2016 Polaris Rzr 900: The Ultimate Owner’S Guide To Maintenance, Mods

Let’s be honest: you love your 2016 Polaris RZR 900. It’s the perfect blend of trail-carving agility and reliable power that makes every weekend an adventure. But you also know that keeping a high-performance machine in top shape isn’t just about luck—it’s about knowledge and a little bit of wrench time.

You’ve probably asked yourself how to get the most out of your ride, what to watch out for, and how to tackle maintenance without getting overwhelmed. That’s exactly why we’re here.

We promise this comprehensive 2016 polaris rzr 900 guide is your new go-to resource. We’ll walk you through everything from the essential pre-ride checks and common problems to a detailed maintenance schedule and the smartest upgrades you can make. Get ready to become the expert on your own machine.

Why the 2016 Polaris RZR 900 Still Rips: Key Specs and Benefits

Even years after its release, the 2016 model holds a special place in the hearts of trail riders. It hit a sweet spot in the market, offering significant power and suspension travel without the massive footprint of the 1000cc-class machines. This is one of the key benefits of the 2016 polaris rzr 900.

The ProStar 900 Engine: Power and Reliability

At the core of this machine is the 75-horsepower ProStar 900 engine. This dual overhead cam, twin-cylinder powerhouse provides snappy acceleration and plenty of torque for climbing hills and powering out of corners.

Unlike its bigger brothers, it’s not a belt-shredding monster, making it a more predictable and reliable partner on long trail days. With proper care, this engine is known for its longevity.

Trail-Tuned Suspension and Agility

Polaris designed the RZR 900 for the trail. With a 50-inch width on the base model, it can access tight, wooded trails that wider machines can’t. The suspension, featuring ZF Sachs shocks, offers a respectable 10 inches of travel front and rear, soaking up bumps and ruts with ease.

This setup provides a plush ride without feeling disconnected from the terrain, giving you the confidence to push your limits safely.

Understanding the Trims: Trail, XC, and S Models

Not all 2016 RZR 900s are the same. Knowing the difference is key, whether you’re buying or upgrading.

  • RZR 900 Trail: The 50-inch base model, perfect for width-restricted trail systems. It’s the most nimble of the bunch.
  • RZR 900 XC Edition: A premium 55-inch version with Polaris’s EPS (Electronic Power Steering), upgraded Walker Evans shocks, and better tires. It’s a significant step up in performance and comfort.
  • RZR 900 S: The 60-inch wide-stance model. It boasts more suspension travel (12.25″ front, 13.2″ rear) with Fox Performance Series 2.0 Podium shocks, making it incredibly stable at high speeds and in rough terrain.

Your Pre-Ride Ritual: The Essential 2016 Polaris RZR 900 Checklist

The single most important habit you can develop is a thorough pre-ride inspection. It takes five minutes but can save you hours of frustration on the trail and prevent costly damage. This is one of the most crucial 2016 polaris rzr 900 tips we can offer.

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Fluids are Life: Oil, Coolant, and Brake Fluid Checks

Before you even start the engine, perform these quick checks. It’s a core part of any good 2016 polaris rzr 900 care guide.

  1. Engine Oil: Pull the dipstick (it’s usually yellow), wipe it clean, re-insert it fully, and pull it out again. Ensure the oil level is between the ‘add’ and ‘full’ marks. Look at the color—it should be a transparent amber, not milky or black.
  2. Coolant: Locate the coolant overflow bottle. The fluid level should be between the low and full lines when the engine is cold. Never open the radiator cap on a hot engine.
  3. Brake Fluid: Check the reservoir level. If it’s low, it could indicate worn brake pads or a leak in the system. Don’t just top it off; investigate the cause.

Tires and Wheels: Pressure, Lugs, and Inspection

Your tires are your only connection to the ground. Give them the attention they deserve.

Use a quality low-pressure tire gauge to check the pressure in all four tires. The recommended PSI is usually on a sticker on the vehicle frame. While you’re there, give each tire a quick visual inspection for cuts or punctures. Finally, grab each wheel and try to wiggle it—excessive play could mean a bad wheel bearing.

Belts, Boots, and Bearings: A Quick Visual Guide

Take a peek at the critical rubber and moving parts. Check the CV boots on all four axles for rips or tears. A torn boot will quickly lead to a failed CV joint if dirt and water get in.

While you can’t easily see the drive belt, you can listen for unusual noises from the clutch area. A quick visual check of your carrier bearing (under the center console) for excessive movement can also save you from a mid-ride failure.

Common Problems with the 2016 Polaris RZR 900 (And How to Fix Them)

No machine is perfect. Knowing the common problems with the 2016 polaris rzr 900 helps you stay ahead of them. Fortunately, most are well-documented and have straightforward solutions for the DIY mechanic.

The Infamous Carrier Bearing Wobble

The Symptom: A noticeable vibration or rattling sound from the center of the machine, especially under acceleration.

The Cause: The factory carrier bearing, which supports the rear driveshaft, uses a cheap, unsealed bearing in a flimsy rubber housing. It fails prematurely, allowing the driveshaft to wobble.

The Fix: Upgrade to a greasable, billet aluminum aftermarket carrier bearing. Brands like Sandcraft RCR or SuperATV offer heavy-duty solutions. This is a must-do upgrade for long-term reliability.

Voltage Regulator and Charging System Woes

The Symptom: The battery won’t stay charged, the machine dies randomly, or you get error codes on the dash. In some cases, headlights might get extremely bright right before they burn out.

The Cause: The stock voltage regulator is prone to overheating and failure, especially when accessories like light bars and winches are added. Its location behind the seats doesn’t provide great airflow.

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The Fix: Test the regulator’s output with a multimeter. If it’s faulty, replace it with a heavy-duty aftermarket unit. Some owners relocate the regulator to a spot with better airflow for improved longevity.

Keeping Dust Out: Air Filter and Intake Maintenance

The Symptom: Loss of power, poor engine performance, or, in the worst case, a dusted engine requiring a full rebuild.

The Cause: Off-roading is a dusty business. A clogged or improperly sealed air filter can allow fine dust particles to bypass the filter and enter the engine, causing catastrophic wear on the piston rings and cylinder walls.

The Fix: This is non-negotiable. Check your air filter before every ride. Clean or replace it often, especially if you ride in groups or in dusty conditions. Ensure the filter housing is sealed correctly and there are no cracks in the intake boots. Applying a thin layer of grease on the filter seal can help create a better barrier.

The Ultimate 2016 Polaris RZR 900 Care Guide: Maintenance That Matters

Following a regular maintenance schedule is the key to a long-lasting machine. Think of it as an investment in future fun. These are the 2016 polaris rzr 900 best practices for DIY service.

Engine Oil and Filter Change: Step-by-Step

You should change your oil and filter every 50 hours of use, or at least once a season. This is a basic “how to 2016 polaris rzr 900” skill every owner should learn.

  1. Warm up the engine for a few minutes to get the oil flowing.
  2. Place a drain pan under the engine and remove the drain plug.
  3. While the oil drains, remove the old oil filter. A filter wrench might be necessary.
  4. Wipe the filter mounting surface clean and apply a thin film of new oil to the gasket of the new filter.
  5. Install the new filter and tighten it by hand until it’s snug, then give it another quarter-turn. Do not overtighten.
  6. Reinstall the drain plug with a new sealing washer and fill the engine with the recommended amount of Polaris PS-4 oil.
  7. Start the engine, let it run for 30 seconds, shut it off, and re-check the oil level, topping off as needed.

Drivetrain Fluids: Front Diff, Transmission, and Rear Diff

These fluids are often neglected but are just as important as engine oil. Change them every 100 hours or annually. You’ll need Polaris Demand Drive Fluid for the front differential and AGL (Agile Gearcase Lubricant) for the transmission and rear differential. The process involves removing a drain plug and a fill plug for each component, draining the old fluid, and refilling until it starts to seep out of the fill hole.

Greasing the Zerks: A Simple Task to Prevent Big Problems

Your RZR has several grease fittings (zerks) on suspension components like A-arms and sway bar mounts. Use a quality marine-grade grease and a grease gun to pump fresh grease into these fittings every 25-50 hours. This pushes out water and dirt, preventing premature wear and annoying squeaks.

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Sustainable Off-Roading: Eco-Friendly Tips for Your RZR

Being a responsible rider means protecting the trails we love. A sustainable 2016 polaris rzr 900 ownership approach ensures these areas remain open for generations to come.

Practice “Tread Lightly” principles by staying on designated trails and crossing water at designated points. When performing maintenance, always use a drain pan and dispose of used oil, coolant, and other fluids at a local auto parts store or recycling center. Using biodegradable, eco-friendly 2016 polaris rzr 900 cleaning products also helps minimize your impact on the environment.

Frequently Asked Questions About the 2016 Polaris RZR 900

What is the top speed of a 2016 Polaris RZR 900?

Stock, a 2016 RZR 900 can reach speeds of around 60-65 mph. The “S” model might be slightly faster due to its larger tires and more stable platform.

How often should I change the drive belt?

There’s no set interval, but it’s wise to inspect your belt every 50-100 hours. We recommend carrying a spare belt and the tools to change it on the trail. If you smell burning rubber or notice performance issues, check it immediately.

What kind of fuel should I use in my RZR 900?

The ProStar 900 engine is designed to run on regular 87 octane unleaded gasoline. Using higher octane fuel will not provide any performance benefit and is simply a waste of money.

Is the 2016 RZR 900 a reliable machine?

Yes, when properly maintained. Like any off-road vehicle, it is subject to wear and tear. By addressing the known common issues proactively (like the carrier bearing) and sticking to a regular maintenance schedule, the 2016 RZR 900 is a very reliable and capable trail machine.

Your Trail to Adventure Starts Here

Your 2016 Polaris RZR 900 is more than just a machine; it’s a ticket to freedom and adventure. By understanding its strengths, weaknesses, and maintenance needs, you empower yourself to keep it running strong for countless miles of smiles.

Don’t be intimidated by the maintenance. Start with the basics, learn as you go, and never hesitate to ask for help. The off-road community is full of knowledgeable folks happy to lend a hand.

Now grab your tools, follow this guide, and keep that RZR tearing up the trails. Stay safe, ride smart, and have a blast out there!

Thomas Corle
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