The battle for supremacy between two stroke and four stroke quads is likely to rage on forever, except for outside factors that may end this age old debate; it is very likely that upcoming legislation could end production of two stroke engines, making it impossible to get a new two stroke quad.  So if you’ve ever considered getting a two stroke quad, the clock is ticking.

Mechanically the difference between a two stroke and four stroke lies in how often the spark plugs fire.  In a two stroke, it fires once with every revolution of the cam, while a four stroke only fires the plugs every other revolution of the cam.  With everything being equal, a two stroke will have twice as many combustions as a four stroke, which causes it to produce much more energy with the same size engine.  While this may make a two stroke sound like an obvious choice, there are several drawbacks to the design and performance characteristics of two stroke ATV engines.

The extra energy and heat produced by a two stroke requires oil to be added to the gas to keep the engine properly lubricated.  Because oil is put in the combustion chamber, two stroke engines smoke a lot, which is the reason for the imminent ban on them.  One side effect of the impressive power that two stroke engines produce is that the top end of the engine must be rebuilt somewhat frequently, depending on how hard the engine is pushed.  Although the rebuild is not terribly expensive, it must be done periodically to avoid rebuilding the entire engine.

For many riders the constant maintenance is worth the performance they get out of their two stroke engine, but the accessibility of this power may be prohibitive for some riders, riding styles, and terrain.  In order to tap into the power of a two stroke engine, you have to keep the throttle close to wide open to stay in the power band.  Although some models are better than others, some stock two strokes lack real power on the low or midrange.  In the hands of an experienced rider, a two stroke is an amazing machine, but in certain scenarios, you can lose all your power by making a necessary up shift or slowing down without a hard down shift.  However, their explosive power makes two strokes the engine of choice for many racers, especially in racing disciplines that require frequent jumps and quick acceleration out of turns, such as Motocross.

As far as typically maintenance, most four stroke quads require relatively little attention.  Spark plugs and oil changes are always necessary, but you do not need to rebuild the engine on a regular basis.  However, many riders complain of the high cost of rebuilding four stroke engines when necessary, but a four stroke engine should hold up longer than a two stroke if it is rode properly.  If you keep a four stroke high in the rpm range all the time, you are asking for trouble.  Although four strokes do not possess the characteristic break-away acceleration of a two stroke engine, they have access to power through a larger rpm range, which eliminates the need to have the throttle wide open all the time.  Access to power in the low and midrange allows for a much more leisurely riding experience, or the ability to dive into deep mud and come out the other side.  Because a four stroke has power on the low end, it has a much easier time freeing itself from deep mud, while a two stroke is usually doomed if it comes to a stop in mud.  Four strokes, in many cases, have a higher top speed than two strokes, but will take much longer to get to their top speed.  Four strokes have improved a lot over the years, with some many dominant racing quads being propelled by four stroke engines.  However, the Honda 250R, a classic two-stroke quad, is still taking podium spots over ten years after it began production.

For the most part, two stroke engines are better suited for light sport quads and four strokes, which produce most of their power on the low end, are more suited for heavier quads made for mud, rocks, and work applications.  The debate between two stroke and four stroke engines is not likely to end soon, but production of two stroke engines may.  If you prefer high speed, airborne, adrenaline heavy riding and you don’t mind spending some time turning a wrench, you may want to get your hand on a two stroke quad while you still can.

Since their introduction to the public several decades ago, ATVs have become increasingly popular. They are very appealing to riders because of the amount of excitement one feels as they are riding. People are now discovering that the whole family can enjoy the excitement of the ATV. On the negative side, though, people are often injured while ATVing, and because of this, it is vitally important that adults do everything they can to ensure the safety of both themselves and their children.

To drive an ATVsafely, one needs to be strong, skilled, and, most important, mature. This is why children who are younger than 16 years of age should never operate an ATV. Adults must not forget that it also takes strength and stamina to be a passenger. A rider who is sitting behind the driver must be able to hold on tight for a long period. Often, they must hold on while the ATV goes over very bumpy ground at a high speed. The rule of thumb is that any child who is younger than six years old should never be allowed to ride as a passenger on an ATV.

It is probably not surprising to discover that head injuries are one of the causes of both death and serious injury on ATVs. These serious injuries usually occur when ATVers crash, fall, or overturn while moving. It should be remembered that children can also be injured if they are towed by an ATV during winter months while they are on a sled, tube, tire, or other device that is being pulled by an ATV. In Canada, statistics show that four children younger than 16 years of age die in recreational vehicle related accidents each year.

So, the question becomes: how can ATVs be used safely so that they are enjoyed by each and every member of the family who is old enough to do so? If your family happens to own an ATV, be sure that no one under the age of 16 is ever allowed to drive it. Again, it is tremendously important that you never allow any children younger than six years of age to ride as passengers. If you are a parent who owns and operates an ATV, consider following these rules to be an excellent opportunity to model the type of safe behavior you want your children to display.

Before you head out on your ATV adventure, be sure to be careful when fueling the ATV. Burns are possible, and you want to avoid them. Be sure to use the proper lifting methods when loading ATVs on and off trailers. This will help you prevent strains and crush injuries. Make sure that you check the weather forecast before you go out. It is probably not a good idea to venture out if a major storm is brewing. Also, make sure that you check the condition of the trails. Depending on how mountainous the area in which you will be ATVing is, you may want to assess whether there is danger of an accident. In the winter, always be sure to avoid ATVing on ice if you are not 100% certain that the ice is very thick.

You should also be able to identify the signs of hypothermia if you are ATVing in the wintertime, and know what to do if it does occur. Make sure that you always travel with the right equipment. You will want to have well-insulated protective clothing, such as goggles, waterproof suits and gloves, and rubber-bottomed boots. Of course, you need to make sure that everyone who will be riding is wearing a helmet approved for ATVing. Another thing you can do to ensure the safety of you and your family is to attach brightly colored antenna flags to your ATV. You will definitely want to do this if you are driving in a particularly hilly area.

Of course, the most important thing you can do to ensure your family’s safety is to drive carefully. Use wisdom and caution. If you have followed the preceding guidelines, you will find that ATVing is a very exciting sport that can be enjoyed by members of your entire family.