You will need
- - strobe;
- - screwdriver;
- - wrench set;
- - a sheet of paper;
- - protractor;
- a pair of compasses;
- - metal strip.
Draw a graduated scale. Draw on a sheet of paper a circle with a diameter equal to the size of the fixed part is installed on the snowmobile CVT. The center of the circle should be mid-end of the engine crankshaft.
Using the protractor mark on the circle C from 0 to 30, counting from the position corresponding to twelve o'clock of the dial and move clockwise. Transfer the completed template on a strip of metal and secure it on the engine cover. Note that the motor must be completely pre-chilled.
Left engine piston set at top dead center. To do this, first Unscrew the spark plug. Then candle in the well of the cylinder insert a special indicator (suitable caliper or screwdriver).
Scroll hand variator in the direction of rotation of the motor shaft, keeping an eye on the movement of the indicator in the candle well. At top dead center device for a moment stop and start movement in the opposite direction.
Making sure that the upper dead point is reached, apply to the variator mark opposite the zero degrees that you may have attached to the engine cover of the scale.
Connect the strobe to the signal was filmed with a high-voltage wire of the specified cylinder. Reinstall spark plugs and start the engine.
Point the strobe lamp on a scaled dial and raise the engine speed to the maximum. Lamp strobe should flash when the occurrence of sparks in the cylinder showing how the mark of the scale matches the label of the variator. It points to existing ignition timing.
To adjust the ignition timing, turn the engine off, loosen the screws attaching the base maggino and rotate it to the required value. Then recheck the angle using the strobe. Turn the base maggino clockwise will reduce the ignition timing, and clockwise will increase it. The offset base maggino 0.9 mm is equal to the change of the ignition timing by 1 degree.
For the engine of a snowmobile "Buran", the ignition timing should be between 22-28 degrees at 5400 rpm.
Advice 2 : How to install ignition on a snowmobile "Buran"
Snowmobile "Buran" - is a reliable and safe vehicle for transportation on snow people and goods. Technical design tools provide easy movement in a forest and good maneuverability. Ease of management, operation and maintenance of the snowmobile largely determined by the simplicity of the device and reliability of the ignition system.
Use when installing the ignition of a snowmobile, the most common version of his design – five-wire. In this case the connection uses the five insights of the switch, which is a wire with plugs on the ends. In contrast to the switch with six conclusions, this design allows you to exclude one control coil, which greatly simplifies the system.
Mount the electronic circuit elements of the ignition in a separate building, guided by the concept of the device.
The white wire of the switch connect to ground of machine, that is, close to the body. Without proper connection to ground, the switch can not work. If the device six conclusions connect the two white wires together.
The blue wire of the switch through the ignition switch connect to the high voltage transformer. The second output winding of the transformer to ground.
Red and black wires of the switch connect to the charging coil, they perform the function of the input charging voltage. Include in the chain between the findings of the "Stop" button and an emergency ignition switch.
The remaining wire is yellow or (rarely) green. Connect it to the coil control mounted on the basis of the ignition system.
After connection, check the ignition system to work. Crank the engine electric or manual starter, running the flywheel with magnets. This arises from the changing magnetic field created at the terminals of the coil AC voltage. After capacitor discharge, accompanied by the appearance of a spark, the engine starts and begins to work.