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Motorcycles explained:

What is a Motorcycle? A motorized design that's based on the bicycle. The typical motorcycle has an air-cooled engine supported in a metal frame between two wheels. Sometimes a third wheel is added to support an open carriage, called a sidecar, which is attached to the motorcycle. The motor is a two- or four-cycle gasoline engine with one to four cylinders. Its piston displacement generally ranges from 50 to 1,500 cc. A very detailed description would be that it is a two-wheeled vehicle powered by an engine. The wheels are in-line, and at higher speed the motorcycle remains upright and stable by virtue of gyroscopic forces; at speeds continual readjustment of the steering by the rider gives stability. The rider sits astride the vehicle on a seat, with hands on a set of handlebars which are used to steer the motorcycle, in conjunction with the rider shifting their weight through their feet, which are supported on a set of "footpegs" or "pegs" which stick out from the frame.

The first motorcycle, designed and built by German inventors Gottlieb Daimler and Wilhelm Maybach in Cannstatt (a city district of Stuttgart) in 1885 was the first petroleum-powered vehicle ever. They called their invention Reitwagen ("riding car"). British manufacturers held a dominant position in this market until the rise of the Japanese manufacturers (led by Honda) in the late 60's and early 70's who were able to produce designs faster and cheaper.

The chassis is typically made from welded aluminium or steel struts, with the rear suspension being an integral component in the design. Some motorcycles include the engine as a load bearing (or stressed) member; this has been used all through bike history but is now becoming more common. The fuel tank is usually mounted above the engine. This tank is generally made of stamped, brazed or welded sheet steel, or blow-molded high-density polyethylene. The wheel rims are usually steel, either with steel spokes and an aluminium hub, or 'mag' type sandcast aluminium. Performance racing dirt bikes often use carbon-fibre wheels, but the expense of these wheels is prohibitively high for general usage.

Important Motorcycle Safety Tips:

Follow these safety tips to make motorcycle riding both fun and safe!

Before You Ride:
-Familiarize yourself before you ride. Read and understand the instruction manual and observe all safety and warning labels. Check the controls.
-Wear the proper clothing/pads including helmet, elbow pads, knee pads, wrist guards, gloves and shoes.
-Check the equipment including the nuts and bolts, steering, brakes and controls, frame (for stress and fractures) and tires (for wear). Inspect your dirt bike thoroughly before each use for loose or missing parts.

When Riding You should:
1.Always wear a helmet and other protective gear.
2.Never ride on public roads - another vehicle could hit you.
3.Never ride under the influence of alcohol or other drugs.
4.Never carry a passenger on a single-rider vehicle.
5.Ride a motorcycle that's right for your age. The guidelines are:
a. Age 6 and older - Under 70cc
b. Age 12 and older - 70cc to 90cc
c. Age 16 and older - Over 90cc
6.Supervise riders younger than 16
7.Ride only on designated trails and at a safe speed.

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Motorcycle Questions and Answers, Tips, Troubleshooting:

Motorcycle Engine Emmits White or Blue/Gray Smoke

Most people automatically associate this as a sign of a major engine problem, which is not always true. While there are definite reasons for concern, this symptom or problem is not always as bad as it appears. In fact, there are several causes for this problem that are relatively simple to troubleshoot and correct. Before you assume the worst, take a look at some of these potential causes along with my recommendations for each.

1. The engine has been overfilled with oil, or the oil has been contaminated with water or fuel, causing an overfilled condition. (Check the oil level, and make sure it is not contaminated.)
2. Diesel fuel, or 2-Cycle oil/fuel mix has mistakenly been added or substituted for gasoline. (Take a fuel sample in a clean container and verify that it's pure, fresh gasoline.)
3. The engine or equipment has been tipped up the wrong way, causing oil to enter the combustion chamber, carburetor and or exhaust system. This is a very common cause for this problem. (If you have recently tipped the engine for any reason, chances are good that this will be the cause.) If the exhaust system or carburetor have been filled with oil, the engine will eventually stop smoking unless the air filter has become saturated with oil. If it has, the engine may not start or will run poorly until you clean or replace the air filter. BE SURE TO CHECK THE OIL LEVEL BEFORE RE-STARTING! *Please Note - All of the following will require at least a partial disassembly or special tools to verify.
4. The crankcase breather(s) are malfunctioning.
5. Leaking crankcase gaskets or seals are causing the engine to lose crankcase vacuum, and allowing the oil to be "pulled" into the combustion chamber.
6. Oil is leaking past worn or damaged valve stems, valve stem seals, or valve guides.
7. The oil ring(s) and/or cylinder bore are worn or damaged.

Refer to the repair instruction manual or take the machine in for professional service.

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