hooking up a tachometer

• 2022-06-08

Before hooking up a tachometer, remove the engine speed sensor before installation and adjustment. Then check whether there are metal chips on the top of the flywheel gear and the speed sensor to avoid affecting the secondary installation. After cleaning the metal chips, screw in the speed sensor until its top contacts the top of the flywheel gear ring. Screw out the speed sensor at the specified angle after it reaches the top.

Generally, it is on the contact generator coil. This kind of tachometer without soft axis measures the speed through the igniter, that is, connect the wiring of the tachometer to the connecting line between the igniter and the high-voltage package, and measure the engine speed by measuring its ignition frequency. The flexible shaft is driven by the camshaft installed on the cylinder head or by the gear shaft installed in the box through the crankshaft. Is the engine tachometer unit. If it is 3000 rpm, it means that the current engine is 3000 rpm. If the engine speed reaches 11 , it means 11000 revolutions per minute . It is almost impossible for 125 motorcycles to reach this speed, and such a high speed can certainly be felt. This situation should be that the tachometer is broken . If it is a mechanical tachometer (there is a flexible shaft line under the tachometer), it can only be changed. If it is an electronic tachometer, it is ok.

The whole adjustment process can be completed. The engine tachometer line of the 125 motorcycle is flexible shaft type . During installation, align the meter line at the lower end of the speed line with the fork of the engine tachometer drive gear shaft, Then press the meter line in and install the fixing screw .

Then pull the tachometer line along the frame under the tachometer on the right side of the instrument, insert the upper end of the tachometer line into the interface under the tachometer, and tighten the screws. How to change the motorcycle speed line if it doesn't turn. The method and steps for changing the motorcycle speed line if it doesn't turn first remove the speed connector on the engine near the oil filler hole on the right side of the engine, start the engine to check whether the internal gear can run, and then remove the connector under the f tachometer gauge.