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why isnt my motorcycle speedometer working
The symptom is :
1. The engine is unstable at idle speed;
2. When the vehicle starts or decelerates during driving, it stops or stalls instantaneously; 3. Engine acceleration can descend;
4. The speed display on the instrument has deviation;
5. The engine fault lamp is on.
The speed sensor is usually installed on the distributor or engine to detect the rotation angle of the crankshaft. But, Once a fault occurs, it will destroy the ignition system and make the engine unable to work. Because most speeds the degree sensors are magnetic pulse type, which can send out weak electrical signals and can be fed with a multimeter or oscilloscope row detection.
First, drain the gasoline, remove the fuel tank, remove the sensor from the bottom of the fuel tank and replace it. If it is a scooter or for beam bending vehicles, open the seat cushion, remove the cover plate, and directly remove the fuel sensor for replacement. Different motorcycles have different fuel tank sensors. If you are riding a motorcycle, you need to light up the steam in the fuel tank. Remove the oil and turn it upside down. Just unscrew the screws. Be careful not to damage the float arm when taking it out. The best thing to dismantle is for curved beam cars, some models can be removed by opening the seat cushion. They are not fixed by screws, but fixed by rotating bayonets. The sharp nose pliers can be taken down by screwing them to the pliers at the notch. OK. Go to a repair shop. The general cost is not very expensive. The stopwatch is used to calculate mileage and speed electronic products. Generally, the driving speed of a dry bicycle is measured by the induction on the steel bar of the front rim magnet, inductor on the front, code meter base placed on the handle along the connecting line, and code meter set on the base. The working principle of the stopwatch is that when the rim rotates, the sensor captures the information brought by the induction magnet the sensor line is transmitted to the code meter, and the host code meter will process it and calculate the speed, mileage and other information. in addition It also refers to some watches with timing function.
The speed measurement of electric motorcycle generally adopts mechanical and electronic methods. Worm gear and worm in the speedometer are easy to wear, odometer line is easy to break, and measurement accuracy is insufficient. The electronic type uses Hall elements that can convert signals to convert the mechanical rotation of wheels into electrical signals and transmit them to the instrument, so that the instrument can accurately reflect the current speed and operating conditions. The electronic type has certain accuracy requirements for the sensitivity of Hall elements and installation dimensions. Failure to achieve this will affect the accuracy of vehicle speed measurement.
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