2020 Can Am Defender 800 – The Ultimate Owner’S Guide To Maintenance

You know that feeling. You fire up your Can-Am Defender, hear that Rotax V-twin rumble to life, and you know it’s ready for whatever the day throws at it. Whether it’s hauling feed on the farm or tackling a rocky trail, this machine is a certified workhorse. But even the toughest rigs need the right care to stay reliable and powerful.

We see it all the time at the shop. A little neglect turns into a big, expensive problem down the road. That’s why we’re here to help. This isn’t just another owner’s manual; it’s your expert guide to getting the absolute most out of your rig.

In this complete 2020 can am defender 800 guide, we’re going to walk you through everything. We’ll cover the essential pre-ride checks, how to tackle common issues before they become disasters, simple DIY maintenance you can do in your own garage, and the smartest mods to make your Defender even more capable. Let’s get started.

Why the 2020 Can Am Defender 800 is a Modern Trail Boss

Before we get our hands dirty, let’s appreciate what makes this machine so special. It’s not just about raw power; it’s about smart, usable power and incredible versatility. The benefits of 2020 can am defender 800 ownership are clear from the moment you get behind the wheel.

At its heart is the reliable 50-hp Rotax HD8 V-Twin engine. It’s not the biggest engine in the lineup, but it delivers smooth, predictable torque right where you need it—perfect for low-speed crawling or towing heavy loads without breaking a sweat.

Paired with the PRO-TORQ transmission, you get a machine that’s built for work. The lower gearing is fantastic for utility tasks, and the electronic belt protection gives you peace of mind that you’re not going to cook a belt when the going gets tough. It’s a combination that screams durability.

Key Features That Set It Apart

  • Versatile Cargo Box: With its modular design and integrated anchors, it’s more than just a dump bed. It’s a platform for whatever job or adventure you have in mind.
  • Comfortable Cockpit: The VERSA-PRO bench seat is designed for three adults, and the cab is surprisingly quiet for a utility side-by-side, reducing fatigue on long days.
  • Dynamic Power Steering (DPS): This feature makes maneuvering in tight spots or on technical terrain effortless, providing just the right amount of steering assistance.

Your Essential Pre-Ride Checklist: A 5-Minute Lifesaver

The single most important habit you can develop is a consistent pre-ride inspection. It takes less than five minutes and can save you from a breakdown on the trail or a costly repair. This is one of the most crucial 2020 can am defender 800 tips we can offer.

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Think of it as a quick conversation with your machine. Here’s what you need to ask it before every ride.

1. Fluids: The Lifeblood of Your Machine

Pull the dipstick and check the engine oil. Look for the correct level and check the color. Fresh oil is amber; dark, black oil is due for a change. If it looks milky or frothy, you could have water or coolant contamination—a serious issue that needs immediate attention.

Next, check your coolant level in the reservoir. A low level could indicate a leak. Finally, glance at your brake fluid reservoir to ensure it’s within the MIN and MAX lines.

2. Tires & Suspension: Your Connection to the Ground

Visually inspect your tires for any cuts, punctures, or excessive wear. Use a simple tire pressure gauge to ensure they are inflated to the manufacturer’s recommended PSI (check the sticker on your vehicle). Uneven pressure can cause poor handling and premature wear.

While you’re down there, give the suspension components a quick look. Check for any leaking shocks or damaged A-arm boots. Push down on the front and rear of the machine; it should rebound smoothly without excessive bouncing.

3. Controls & Electrical: See and Be Seen

Turn the key to the “on” position. Test your headlights (high and low beams), taillights, and brake lights. Honk the horn. If you have turn signals or other accessories, check them too.

Engage the 4WD switch to make sure you hear it click in. A quick check now saves you from discovering it doesn’t work when you’re already stuck in the mud.

Tackling Common Problems with the 2020 Can Am Defender 800

No machine is perfect. Being aware of the common problems with 2020 can am defender 800 models allows you to spot them early and address them before they sideline you. Here are a few things to keep an eye on.

Drive Belt and Clutch Issues

The CVT system is robust, but it’s a wear item. If you notice a shudder on takeoff, a burning smell, or a loss of top-end speed, your drive belt might be glazed or worn. Regular inspection and cleaning of the clutches can dramatically extend belt life.

Pro Tip: Always carry a spare drive belt and the simple tools needed to change it on the trail. It can turn a trip-ending disaster into a 20-minute fix.

Suspension Bushing Wear

The Defender is a heavy machine, and the suspension bushings take a beating, especially with aggressive riding or oversized tires. If you hear clunking or feel excessive play in the suspension, it’s likely time to replace your A-arm bushings. Upgrading to aftermarket polyurethane bushings can be a long-term solution.

Electrical Gremlins

Many issues can be traced back to a weak battery or a poor ground connection. Before you start chasing wires, ensure your battery terminals are clean and tight. The main ground wire connection to the frame is another common culprit for intermittent electrical problems.

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If you’ve added a lot of electrical accessories like a winch or light bars, make sure the wiring was done correctly and isn’t overloading the stock stator. Using a dedicated accessory bus bar is one of the 2020 can am defender 800 best practices for electrical mods.

DIY Maintenance: A Step-by-Step 2020 Can Am Defender 800 Care Guide

Learning how to 2020 can am defender 800 maintenance yourself is empowering and saves you money. These are core tasks every owner should be comfortable with.

Changing the Engine Oil and Filter

  1. Warm Up the Engine: Run the machine for 2-3 minutes to get the oil warm. Warm oil drains faster and carries more contaminants out with it.
  2. Position and Drain: Park on a level surface. Place a drain pan under the engine and remove the drain plug (usually a 17mm bolt). Be careful, the oil will be hot.
  3. Replace the Filter: While the oil drains, use an oil filter wrench to remove the old filter. Lightly coat the rubber gasket of the new filter with fresh oil and screw it on. Hand-tighten it, then give it another quarter-turn with the wrench.
  4. Refill and Check: Reinstall the drain plug (don’t overtighten!). Refill with the correct amount and type of oil (check your manual, but it’s typically XPS 5W-40 Synthetic Blend). Start the engine, let it run for 30 seconds, shut it off, and re-check the level on the dipstick, topping off as needed.

Cleaning the Air Filter

Your engine needs to breathe clean air. A clogged air filter robs power and can lead to engine damage. Access the airbox, remove the filter, and gently tap out any loose debris.

Use a filter-specific cleaner and follow the instructions. Never use gasoline or harsh solvents. Once it’s clean and completely dry, re-oil it lightly (if it’s a foam filter) and reinstall it. Make sure the airbox cover seals properly.

Sustainable Off-Roading: Eco-Friendly Best Practices

Being a responsible rider is part of the fun. A sustainable 2020 can am defender 800 experience ensures our trails stay open and beautiful for years to come. It’s about leaving the place better than you found it.

Adopting an eco-friendly 2020 can am defender 800 mindset is simple. It starts with staying on designated trails to prevent erosion and protect wildlife habitats. Avoid spinning your tires unnecessarily, which tears up the trail surface.

When performing maintenance, always use a drain pan to catch fluids. Take your used oil, coolant, and filters to an auto parts store or local recycling center for proper disposal. Never dump fluids on the ground or down a drain. A clean machine is also a happy machine; wash your rig in a designated area to prevent mud and potential contaminants from entering local waterways.

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Frequently Asked Questions About the 2020 Can Am Defender 800

What kind of oil does a 2020 Can Am Defender 800 take?

The manufacturer recommends XPS 5W-40 Synthetic Blend Oil. Using a high-quality, powersports-specific oil is crucial for protecting the engine and wet clutch system. Always check your owner’s manual to confirm the exact specification for your machine.

How often should I service my Defender 800?

The first service is critical and typically due around 25 hours or 600 miles. After that, a general service (oil change, filter check, chassis lube) is recommended every 100 hours or 1,200 miles under normal use. If you operate in extremely dusty, wet, or muddy conditions, you should shorten those intervals significantly.

What is the top speed of a 2020 Can Am Defender 800?

Stock, the 2020 Defender 800 is electronically limited to a top speed of around 60-62 MPH. While it can be modified to go faster, its design and gearing are optimized for low-end torque and utility work, not high-speed racing.

Can I make my Defender 800 street legal?

This depends entirely on your state and local laws. Many states have provisions for making a UTV street legal, which typically involves adding a kit that includes a horn, turn signals, mirrors, and a license plate bracket. Always check with your local DMV for the specific requirements in your area before investing in a kit.

Your 2020 Can-Am Defender 800 is an incredibly capable and reliable machine. By investing a little time in regular maintenance and smart upgrades, you ensure it will be ready for any task or trail for years to come. Know its strengths, understand its common quirks, and don’t be afraid to get your hands dirty.

Now, grab your tools, run through that checklist, and get out there. The trail is calling. Ride safe and have fun!

Thomas Corle
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