The low consumption that low displacement scooter models provide makes it an inexpensive work tool. This is reflected in the operating cost of logistics companies that have adopted it. In practice, there are several ways to save fuel on a scooter that consumes too much. First of all, avoid sudden acceleration and unnecessary load carrying that weighs down the scooter. Respect the technical sheet of the scooter (tinkering with the carburetor and the air filter consumes.). Driving with a cold engine and braking them inadvertently also consumes fuel. Otherwise, an improperly tuned or worn out engine consumes fuel and we'll see why.
Scooters - general information
Here is an article that serves as a guide and helps you choose your scooter better before purchasing. For this, we give you the details on the characteristics and the different types of scooter.
Scooter fuel system
Before talking about consumption, let's first see the gasoline supply circuit in a scooter. The circuit includes the tank, the fuel filter placed after the tank, the piping for delivering gasoline, the carburetor in the case of an indirect injection engine or the injector in the case of a direct injection engine . All of these must be clean in order to function properly at their optimum condition. They must also be adjusted in such a way that the fuel combustion is optimal. They should not show any signs of wear.
The gasoline delivery circuit is of the closed type. This means that the excess gasoline does not return to the tank. Gasoline, during its flow to the engine is mixed with air at the carburetor or directly in the engine if it is a direct injection. The air mixed with the gasoline must be pure and must be free of all solid particles. The flow rate of the gasoline to be injected into the engine depends on the demand on the accelerator wrist by the driver.
Scooter that consumes too much because of an engine problem
Engine wear consumes too much. A series of repeatedly delayed oil changes will ineffective lubrication and thus lead to premature wear of friction mechanical parts. For example, if the combustion chamber is no longer sealed due to premature wear, engine performance will be reduced and it will take a little more gasoline to reproduce the desired performance. On the other hand, a leaky combustion chamber will cause incomplete combustion of the fuel and this affects fuel consumption. An exhaust that emits fumes is characteristic of a scooter that consumes too much. However, in the case of a two-stroke engine, the engine lubricating oil is also mixed with air and gasoline. This is why a two-stroke engine will always tend to smoke from the exhaust.
Scooter that consumes too much because of an ignition system problem
A wet spark plug consumes excess fuel. The function of the ignition system of a scooter is to supply a very high voltage current to the spark plug. The latter will produce a spark at its electrodes to be able to ignite the air / gasoline mixture in order to produce the explosion itself. However, when the spark plug fails due to wear or a downstream power supply problem, the explosion will not be optimal and will produce smoke characteristic of incomplete combustion. . This incomplete combustion considerably increases fuel consumption. To remedy this, it will be necessary to check the entire ignition circuit: the coil, the condenser, the spark plug, the ignition timing, or even the computer if it is a direct injection engine. .
Overconsumption due to a clogged air filter
One volume of gasoline needs to be mixed with 15 volumes of air to produce optimum explosion performance. However, a clogged and clogged air filter could jeopardize this predefined mixture which would reduce the volume of air necessary for proper fuel combustion. In this case, it will either be necessary to clean the air filter or to replace it if its wear appears to be advanced. A sponge air filter can be washed. Likewise, a paper air filter should be cleaned by high pressure ejected air. This can be found in vulcanization centers or in garages with an air compressor.
Scooter that consumes too much because of a clogged exhaust
The exhaust pipes of two-stroke engines tend to clog, because engine oil is injected directly into the combustion chamber and then evacuated to the muffler. Unburned, the oil is ejected from the cylinder in the form of large particles which clog the exhaust line. The clogged exhaust thus returns the pressure to the engine and risks reducing the efficiency of the latter. Overconsumption of gasoline, or even engine stalling, is the end of this problem. In order to properly maintain the exhaust of two-stroke engines, it is preferable to properly dose the volume of oil to be injected into the engine to prevent too much unnecessary oil from being mixed with gasoline.
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