If the ignition coil of the Yamaha generator fails, it is recommended to replace the damaged ignition coil in time. According to the relevant query information, if the ignition coil is damaged, resulting in a shortage of cylinders, the engine will shake easily and the power will decrease. If the mixture is not completely burned, carbon deposits will easily occur and there is also a risk. traction of the cylinder. If multiple ignition coils are damaged, the engine will not start.
How to repair a motorcycle generator that is not producing electricity
Common causes of ignition coil damage
The external ambient temperature of the ignition coil is high, causing the ignition coil to overheat; the motor overheats, the installation location is too close to the heat source, resulting in poor heat dissipation (overheating faults should bere eliminated and the coil should be installed slightly away from the engine);
Incorrect wiring and incorrect wiring on the ignition coil will cause the additional resistor to fail, causing weak operation of the engine. The coil temperature increases when the speed is high, the motor regulation voltage is too high because the regulator voltage is high. too high and the primary current is too large, causing the output voltage to increase and the coil to heat up;
The ignition coil and the motor do not match. When replacing the coil, it must be adapted to the vehicle model. Don't think that the same voltage can be used universally.
The quality of the coil is poor or there is a short circuit between turns inside, causing heating;
The impact of the use process, such as forgetting to turn off the ignition. interrupteur when the power supply is parked for a long time;
Switch if not turned off, the power-on time is too long and the generator runs at low speed for a long time;
There are also spark plugs that "hang" for a long time due to carbon buildup, and spark plugs that spark for a long time due to loose carbon particles in the center of the distributor, etc. All of these can overheat and cause insulation corrosion or explosion damage.
Ignition coil breakage precursor fault diagnosis and ignition coil breakage elimination
In normal use, the case will heat up after a short circuit of the ignition coil ignition, but once the ignition coil is short-circuited, the high-voltage spark will become very weak, the jump distance is short, and it seems to be broken.
It is particularly easyile to stall during acceleration. What is common is the use of low voltage (primary) lines, which cause excessive current and heat, leading to insulation ablation and a short or open circuit in the low voltage circuit, some coils of ignition burst and damaged; is caused by the ignition switch being in the on position. This is because when the motor is running, the circuit breaker's platinum contacts are turned on and off, and the current flowing through the primary coil is turned on and off. At low speed, the contact closing time is slightly longer and the average value of the primary current is proportionally greater. At high speeds, the contact closing time is slightly shorter and the average primary current value is proportionally smaller.
After stopping the engine, if the ignition switch is placed in the on position, while the contacts aret closed, the current from the battery to the ignition coil will reach a stable value, which is much larger. than the primary current during normal operation. If left too long, the ignition coil will burst from internal heat and combustion. In addition, the two wires of the additional resistor are connected reversely, which excludes the additional resistance from a current cycle, and its low voltage short circuit will also cause the ignition coil to heat up. The normal temperature of the ignition coil during operation cannot be too high, generally below 80, otherwise the internal insulating material will melt and lose the insulation effect, causing the internal resistance of the coil to increase and high speed engine ignition; Hot starting is difficult; at the same time, the life of the ignition coil is shortened.
Key points for usings ignition coils, precautions and measures to avoid explosion injuries;
Ignition coils should be installed in a ventilated and dry place as much as possible to prevent them from being affected. through high temperatures and humidity and keep its appearance clean. Check each terminal of the ignition coil frequently to avoid short circuits or open circuits due to corrosion and aging; properly adjust the regulator limit voltage to ensure that the generator output voltage is within the limit voltage range; clean or replace spark plugs; regularly to avoid “hanging fire”; When the engine is not running, do not turn on the ignition switch for a long time;
There are many reasons why the motorcycle generator does not generate electricity, such as poor contact in the power path, aging of the coile ignition or failure of the generator itself, etc. Please follow the steps below to check the problem:
1. Check the power path, open the power path, wipe each contact, add a little grease, check the contact situation, if any detachment is found, please repair it immediately. ;
2. Check the ignition coil. Remove the ignition coil and check the voltage with a multimeter. If the ignition coil is old, please replace it with a new one.
3. Check the generator, disassemble the generator and use a multimeter to measure the DC voltage. If the standard voltage value is not reached, it means that there is an internal fault in the generator. with a new one.
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