To gain a deeper understanding of the way the two engines work, check out the mechanics of a 2 stroke vs 4 stroke. It’s still a huge discussion that’s been going on for life.) The 150 is one of the lightest trail bikes available, but it has plenty of power. Due to the way they’re assembled, they require a mixture of fuel and oil. As long as you’re prepared to be heavily involved in the maintenance, upkeep, and rebuild of your engine, this could still be a good choice! Here’s a handy-dandy video that shows you exactly how two-stroke engines work, in addition to the parts they have: Four stroke dirt bike engines are a little more complex than their two-stroke counterparts. While they require half the strokes to accomplish the same purpose as a four-stroke engine, they do make twice as much noise. These things put out a lot of emissions into the air, which hurts the environment. When it comes to racing:  Is it fair that a 450cc four stroke is able to compete against a 250cc two stroke? Differences between 2 stroke vs 4 stroke dirt bikes. It’s a true straight-forward guide for the rest of us. In this case, the fewer parts and lack of complicated operation make cleaning the engine a piece of cake. Well it seems there are a number of debatable reasons. A 2 stroke can more efficiently make more power than a 4 stroke of the same engine displacement “CC”. In describing the differences, there are already some similarities that we can see: Regardless of the engine built, both two strokes and the four strokes are great engines that make great dirt bikes. Two stroke dirt bikes also tend to “smoke” during startup. It’s great if you want a 2 stroke that is easy to handle and maintain, but want to be aggressive and have fun twisting the throttle. Some people believe (and blame) the format of the AMA and large companies such as Honda that have had a heavy influence over the major Championship races that dictate the specifications of bikes that are allowed to compete against each other. However, two strokes work better on some terrains and are more efficient on different types of dirt biking than four-stroke engines are, and vice versa. As a two-stroke engine will give you twice the number of firing strokes a four-stroke engine will, a four-stroke engine will give you a more steady and reliable output of power, which makes your bike easier to “read” while riding it and will consistently give you a smoother feel. It’s a debate as old as time: 2 stroke dirt bikes versus 4 strokes. PER CC a 2 Stroke produces more Horsepower Choosing between the two bikes is not a cut and dry matter, though. Print it and hang it in your garage and you’ll have the perfect dummy-proof reference and maintenance charts! But how much more pollution do they really put out compared to the 4’s? Both engines complete four steps: intake, compression, combustion, … Two-stroke engines generally require more maintenance, but the parts are cheaper. All Rights Reserved. 2 Stroke vs 4 Stroke Dirt Bike Maintenance. Easy enough? 2 Stroke Vs 4 Stroke Dirt Bike Maintenance 2-stroke engines have a simpler design and have far less moving parts than a 4-stroke engine. Now, I know it’s not that much of a weight difference for the overall dirt bike if you have a two-stroke instead of a four-stroke, but every pound counts in dirt biking. DirtBikePlanet.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Few racers in the country have a better handle on the benefits of two-stroke versus four-stroke bikes than the two-time EnduroCross and former US Trials champ. A few years ago I bought dirt bikes for myself, my wife, and my kids. Depending on how and where you ride your dirt bike will be the deciding factor for whether a 4 stroke engine is right for you. Two stroke engines are typically cheaper also because they have fewer parts than four-stroke engines. Unfortunately, since there are fewer parts, each of the parts does more work, and are subject to more wear on average. Why? This is the site where we share everything we've learned. Two stroke engines are the much less complicated option out of the two engines. The mixture was pulled into the crankcase during the most recent compression stroke, the one prior to the current power stroke that hasn’t completed yet. It should be beneficial for you to make the ultimate decision. They have also got an intense kick to the motor. Having a lightweight dirt bike can be a good thing for a number of reasons. It’s the same with engine weight. Finding the right dirt bike for your kid can be a little challenging sometimes--especially when it comes to finding the right price. Who doesn’t love that? I myself am an owner of a 2007 yz 450f and it is the fastest and best bike i have ever owned and i have owned many 2 stroke and 4 stroke bikes. On the first, or “intake” stroke, the piston lowers, pulling in a mixture of air and fuel. 2 stroke vs 4 stroke – which one is better? 2 Strokes VS 4 Strokes is a continuing battle today. In describing the differences, there are already some similarities that we can see: 1. Slowing down was harder because the extra weight was pushing you forward. This means that, while maintenance and repair are easier and cheaper, you’re also going to have to perform more maintenance in general. If you generally consider yourself to be “just” a trail rider, or your dirt bike for fun, you probably don’t have to worry as much about excess weight, or the effect a couple of extra ounces or pounds can have on your top speed. Now we have two bikes that are ideal for that challenge. Cons include: the cost of oil, tendency to foul spark plugs, less torque than the 4 stroke and the bike is harder to handle on a tight course. Click Here To Read About The Future Of Two Stroke Dirt Bikes, Click Here To Read About The Future Of Two Stroke Dirt Bikes Part 2, Click Here To Read About 2 Stroke Fuel Ratios. I hope all your confusion has vaporized in the air by this time. The upward action of the piston pulls in the next fuel and air mixture from the carburetors and keeps it underneath the piston. Unfortunately, repairs on a four-stroke generally are more expensive, since there are more components used to keep the engine running. 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