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From Kokorodatabase

The Mini Moto is a modest scale replica of the Planet Super Bikes utilised 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, dependent on the model, capable of speeds of up to 60Mph. But how significantly do you know your mini moto? In this component I will underline the finer factors of the elements that make these speeds feasible.

The Two Stroke Engine

The two stroke engine generates much 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 situated on the walls of the cylinder. Unlike the 4 stroke engine that fires only each other time of the pistons motion, the two stoke engine fires each 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 throughout passive cycles. This is the principal reason that the two stroke engine can rev a lot more highly and generate far more energy (for its size) that the four stroke.

Fuel

The two stroke engine requirements to be run on a mixture of petrol and two stroke oil. This is so that the engine is kept lubricated whilst in use.

99% of all beginning troubles are brought on by fuel troubles. These can stem from negative or old fuel and improperly mixed fuel (please see mixing chart). Do not use fuels that consist of alcohol, as the can result in you bike to run 'lean'. Be advised some racing fuels consist of alcohol and are greatest avoided... We advocate that you use normal petrol for a garage and top quality two stroke oil.

A mixture that is too lean i.e. not adequate two stroke oil can damage your mini moto's engine as the moving components are not effectively lubricated. This can lead to the engine to seize. Even so a mixture that is also wealthy can choke the engine and impact the efficiency and cause beginning difficulties. You can inform if your mini moto is running as well richly by the plumes of white smoke coming out of the exhaust and the lack of performance. A wealthy mixture (25:1) is necessary to lubricate the engine for the duration of the 'run in' period you may experience a lack of performance for the duration of this period. The pocket bike may possibly run far more slowly and acceleration can be sluggish, however when you alter to a mixture of 50:1 you will truly discover a difference. The leaner mix ignites in the combustion chamber quicker and with a far more explosive force than the richer mix. This signifies increased revs which imply much more power and acceleration.

We advise that a fuel mixture of 25:1 is utilized to 'run in' you mini moto, and a mixture of 50:1 is employed thereafter.

'Running in'

Your mini moto must be 'run in' for the 1st 3-4 tanks of fuel. During this period we recommend that you use a fuel mixture of 25:1. This signifies a mixture that is produced up of 25 parts petrol to 1 part of two stroke oil. Throughout the 'running in' period be careful to not rev the engine to its highest as this can damage the engine. The 'running in' period will enable the moving parts to become effectively oiled and the clutch and brakes to 'bed' themselves in. Immediately after you have run the minimoto on this fuel mixture for three-4 tanks, examine the chain and tighten accordingly, examine the tire pressure, tighten the bolts on the brakes, forks and wheels. You might also need to have to readjust the throttle settings to let for the larger revs that changing to a leaner fuel mix generates. The bike should now be ready for a fuel mixture of 50:1.