Can-Am was a motorcycle production division of BRP, Bombardier Recreational Products, a Canadian corporation, between 1971 and 1987. Since 2006 Bombardier has produced all-terrain vehicles under the Can-Am Off-Road brand.

ATV Troubleshooting

Overheating
To be fair, overheating is a common issue you can find in all 4-wheelers. ATVs run hot, it’s a given. Still, Can-Am customers seem to be more vocal about this issue, even though there doesn’t seem to be just one cause. There are quite a few reasons why a Can-Am ATV can overheat, so let’s go over them:
1. Adding the wrong type of coolant, which can be solved by performing a coolant test and changing it up;
2. A faulty thermostat that needs changing;
3. A faulty cooling fan that needs changing.
Another very common reason for overheating is mud in the radiator, but that is a self-induced issue. Make sure to check it before you make costly changes on your quad though. To prevent overheating in the future, there are quite a few aftermarket upgrades that could help. Lots of off-road riders add a high-pressure radiator cap and an electric radiator fan to their quads to keep their engine cool all year round.
If you feel extreme heat on your left foot while riding, then the overheating is caused by the exhaust pipe. You can cool your quad down with some heat wrapping that retails for around $15.

Leaking CVT Cover
Next on the list of Can-Am problems we have the CVT cover leaking oil. If you have bought your ATV at a dealer shop, then this is not even an issue for you. Bring it to the dealer and they will most likely fix it free of charge.
In case you bought it off another person and you’re not going in for a check any time soon, you can patch the cover-up with a gasket and seal. Still, this solution won’t last forever and you’ll have to hit a mechanic’s shop sooner or later.

Easily Breakable Frames
This seems to be an issue specifically found in Gen 2 Can-Ams, where frames get easily bent or break after riding on a rough trail. This depends on your style of riding of course, but, after all, quads are made for all types of terrain.
If you do not baby your machine and only ride it on paved roads, then you might be interested in adding skid plates and a frame mod.
Can-Am owners are more than accustomed to frame mods, whether that is an aftermarket system or a DIY reinforced rod. Still, I will mention that some people don’t like to add a mod because of the risk of the A-Arm ripping completely off.
The skid plates are some of the most common aftermarket upgrades for ATVs that protect the underbelly from rocks, sticks, and tree trunks. They are, however, quite expensive as well. Frame mods or A-arm guards will protect the front part of your frame in case you crash into a tree.
Let’s say you didn’t have time to prepare for this issue and your frame is already bent. What is the solution then? Well, depending on the gravity of the situation, you could use a come-along to bend it back or contact a welder to put it back into place. This is the cheaper alternative to changing out your frame completely, which might be the only solution in severe cases.

Timing Chain Stretching
While shabby frames are a Gen 2 issue, it seems that Gen 1 Can-Ams have a specific issue too: excessive timing chain stretching. When the timing chain is too stretched out, you will notice that your engine backfires and you are losing power while riding.
If you find your timing chain is stretched out, go ahead and replace it. It is one of the least expensive fixes on this list of Can-Am problems.

Fuel Pump Issues
From what I’ve seen and heard on fuel pump problems from Can-Am, these are directly related to how you ride it. If you are a careful rider that keeps the fuel tank full at all hours and who doesn’t swamp their machine on a regular basis, chances are you will not have issues with your fuel pump.
When encountering problems with your fuel pump, a billet gas cap might do the trick, or you might need to change your fuel pump completely. If you want to do it yourself, there are quite a few videos online that will help you step by step. Keep in mind that there’s a big difference between Gen 1 and Gen 2 systems.

SOURCE: https://atv-outdoors.com/top-6-can-am-atv-problems-how-to-fix-your-atv/

Motorcycle Troubleshooting

Overuse 
After enduring all the elements of riding listed above, the ignition coil is bound to wear out. 
The ignition coil’s wear and tear could damage the bond between the primary coil and the primary and secondary coil windings. 
Using the coil past the point of no return only damages it more and more, and overuse could strain other components in the process. 

Damaged spark plugs 
If your ignition coils operate at a higher output than average, then they are bound to get damaged quickly. 
This increased output may occur when your spark plugs are worn out. 
When a spark plug is wearing out, the coil is forced to produce more voltage to close this gap, and this extra strain can lead to overkill and an eventual failure. 

Failed Wiring Loom/Harness 
The wiring loom or harness is an assembly of electrical wires bound by a durable material like the rubber or electrical tape. 
It keeps wires organized and protects them against exposure to vibration, moisture, and elements. 
A failed wiring loom can cause the motorbike not to start at all. It may also cause the lights to function erratically. For example, flickering dashboard lights are common on bikes with bad wiring harnesses/looms. 

Faulty Regulator Rectifier 
The regulator rectifier converts AC to DC, which is used to charge your bike’s battery. 
More importantly, it regulates the DC current and prevents high voltage surges from damaging the motorcycle’s battery. 
Faulty regulator/rectifiers can lead to various problems, especially for the motorcycle’s battery. Diode burnout is one such problem. It also causes the battery to drain abnormally. Electrical components like headlights, meters, and others may perform erratically as well. 
It is important to test your bike’s voltage with a voltmeter to be certain the fault is from a faulty regulator and not a bad battery. 

Malfunctioning Gearboxes 
Malfunctioning gearboxes are another widespread problem. 
According to owners, the gearbox (or its components) develops faults, making gear shifting difficult or erratic. 
Erratic shifting aside, false neutral, delayed engagement, and missed shifts are other problems caused by a malfunctioning gearbox. False neutrals occur when the transmission goes out of gear during shifting. As a result, the motorcycle will decelerate like one in neutral gear, hence the name “false neutral.” 
Most of these problems are often the result of damaged or faulty gearbox components. They are often the result of hard riding with improper shifting or a lack of regular service maintenance. 

Excessive vibrations 
This is a potential issue on any bike. 
Bikes vibrate, and vibration can cause wear and tear on many of a bike’s components, including the ignition coil. If the ignition coil’s windings are damaged from vibration, it can cause breaks in your ignition coil’s secondary windings. 

SOURCE: https://motorandwheels.com/common-problems-ducati-motorcycles/