Bike Maintenance

Bike Maintenance is a very important part of owning a dirt bike. If you don't take care of your bike it won't run right, and it can lead to damage which can be costly.

The first obvious thing you want to do is wash it. If you don't wash your dirt bike it’s like wasting your money because it won't look as good, but the main reason is that dirt can get in the motor. When dirt gets in the motor it can destroy your dirt bike. Make sure that you don't get water in the pipe so when you're washing because that will also mess up your motor.

You also want to clean the air filter. People buy bikes and think that you just put gas in them and go, but you often need to clean the air filter or the motor won't get any air. To do this you can use air filter cleaner and it gets all the dirt and mud out of it. Then you need to spray air filter oil on the air filter so that it will catch all the dirt.

Next you want to change the oil in your dirt bike. If you don't do this it cannot act as a lube and help the motor run. You should change this often or it can also destroy your motor. I change the oil in my bike every 2 weeks, which isn't necessary unless you ride a lot.  

If you do these three major things it will extend the life of your dirt bike. It will also save you money. so follow the tips it will help you!

Two stroke vs Four stroke

Comparison between a four stroke 250 and a 2 stroke 250

Ever since four stroke dirt bikes have become competitive with the two strokes people have been arguing which one is faster and just all around better so lets compare them.

what is the horsepower difference?
The first difference between the Yamaha four stroke dirt bike and the two stroke is that the 4 stroke 250 produces 8500 rpm and 36 horsepower. The 2 stroke 250 makes about 46 horsepower at 11,300rpms. That’s a 10 horsepower advantage.
The difference between the KTM 250sx two stroke produces around 49.77 horsepower.

The KTM 250 four strokes make about 35.5 horsepower. So the 2 stroke has 13.22 more horsepower.
So no matter what brand of bike you get the 2 stroke is going to have more horsepower.

Horsepower doesn't matter if you don't have good torque so the torque comparison is:
The KTM 250 four stroke has 19.42 foot pounds of torque at 8600 rpm. While that is good torque the KTM 250 two strokes crushes it with 31.93 foot pounds of torque at 8000 rpm.

The KTM two strokes has way more than the four stroke. But its not the only brand were the 2 stroke has more horsepower the Yamaha 2 stroke has 30.6 foot pounds of torque. The YZ 250 four strokes has about 20.1 foot pounds of torque.

Is there a price difference?
Both the Yamaha 2 stroke and four stroke have the same retail of $7150
The 2012 KTM 250 two stroke is $800 cheaper than the 2012 KTM 250 four stroke. It retails for around $6899 (MSRP). The 2012 KTM 250 four stroke’s price is $7699

The author of dirt bike magazine said "Privateers could compete at a higher level for a lower cost. Even at the National level, engine mods on a two-stroke top out at around $1000—you can't buy the top-end parts for a four-stroke for that amount. "
Conclusion
My conclusion based on my research is that the 2 stroke is a faster bike. It is also cheaper bike. So why would you choose something that is more expensive and slower?

 Motocross action magazine said  "Without pulling any punches, every MXA tester thought that the 250SX two-stroke was a better race bike—lighter, faster, cheaper, better handling and easier to maintain. "