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MotorCycles
In the last part of the Get To Know Your Mini Moto series, I will explain how further components of the mini moto contribute to this great little machines.
Throttle
The throttle on your new mini moto is a ‘twist grip’ style throttle. When you twist the throttle the throttle cable is pulled back revving the engine. It is important to keep this cable free from obstacles and clean. If the throttle begins to feel ‘loose’ of ‘gives’, the tension of the cable can be adjusted via the adjusting screw.
Brakes
The brake system comprises of brake levers, brake cables, brake calipers and brake discs.
The brakes on your mini moto are operated by levers found on the handle bars. The right hand brake controls the front brake, and the left controls the back brake. Pulling on the handle pulls the brake cable which in turn pulls the lever located on the bake caliper. This action pushes the brake discs towards each other. This creates friction on the brake disc which slows down or stops the bike.
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MotorCycles
This article explains some of the components that contribute to the make-up of the remarkable piece of engineering called the mini moto. Take a read through and discover how each component plays its part.
Air Filter
Your new mini moto is equipped with an air filter. Some bikes such as the B1 Origami rep liquid cooled and the Mini Dirt bike have a ‘cone’ style K and N style air filter. The 2005 mk2 mini moto and the B1 Origami Replica air cooled bikes have a standard mini moto air filter. Both air filters purify the intake of air that is sucked into the carburetor. This means that the air filter should be cleaned regularly as the mini moto’s performance can begin to suffer as the engine can become starved of air if the air filter is choked with debris. To reach the air filter, remove the bikes bottom fairing, remove the protective cover by unscrewing the holding screws. Clean the air filter in petrol but make sure that the filter is dry before reattaching to you mini moto.
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MotorCycles
The second part of Get To Know Your Mini Moto will delve further into the many components that contribute to a mini moto, namely the clutch and spark plug, and explain how each plays its part in these remarkable machines.
Clutch
The mini moto uses a centrifugal clutch to power the drive the sprocket, which in turn drives the back wheel of your mini moto.
When you start your mini moto the clutch spins as the engine ticks over. The clutch is engaged when you pull back on the throttle. The increase in speed of revolution of the clutch makes the clutch expand and grip the inside of the clutch bell which turns the sprocket that drives the back wheel of your pocket bike.
The clutch can be set up in different ways depending on the type of performance that you want from your minimoto. Adjustable clutches are not standard on mini moto’s but an after market Polani or Blata style adjustable clutch can be used in your new mini moto. These allow the rider to adjust the mini moto’s set up in according to their preference. Setting the clutch to engage too late when the engine has built up too much power may cause the clutch to slip and never fully engage. This can result in excessive wearing. However setting the clutch to engage too early, before the power has built up in the engine can cause your pocket bike to ‘bog down’, resulting in slow acceleration. The perfect set up is to get the clutch to engage just as the engine has built enough power to rocket the mini moto away, but without making the clutch slip, this is achievable through trial and error.
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MotorCycles
The Mini Moto is a small scale replica of the World Super Bikes used by the likes of Valentino Rossi and ex champion Carl Fogarty. The Mini Moto comes equipped with either a two stroke air or water cooled engine which are, depending on the model, capable of speeds of up to 60Mph. But how much do you know your mini moto? In this part I will underline the finer points of the components that make these speeds possible.
The Two Stroke Engine
The two stroke engine produces more hp per pound than the four stroke engine. The two stroke engine consists of three moving parts, the piston, the rod and the crank. The piston acts as valve that opens and closes the intake and exhaust ports that are located on the walls of the cylinder. Unlike the four stroke engine that fires only every other time of the pistons movement, the two stoke engine fires every time the piston reaches the top of its travel. This means that the time spent generating power is doubled in the two stroke engine than that of the four stroke engine, as there is no engine coasting during passive cycles. This is the main reason that the two stroke engine can rev more highly and produce more power (for its size) that the four stroke.
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