Info Manual

This is my digital tachometer i made a long time ago on my suzuki shogun 125cc and still in active up to date. The tachometer incorporates a programmable shift lights, the red line can be programmed depends on where to shift at a certified RPM...watch the video to see it in action.

Many enthusiast and motorcycle rider ride their bike, using electric starter to start the engine undoubtly knowing the battery gone flat, charging system might have gone down but no visual indicator that the system indeed is not charging or have problems...so in the first place why not build one to visualize you anything bout  battery voltage on board the bike.

Using pic microcontroller and little components, you can create one like as shown.

Raider R150 tachometer is a digital design that works only with the OEM DC-CDI. The input signal pulses for it to work came from one of the output pins of the MCU inside the black box.

Many motorcycle mod junkie that fits aftermarket compatible ignition controller like the BRT, kitti and others do not have that pulse to make the tachometer work again, Hence only some modification is needed.

Figure 1 shows the circuit that may able to use to control and or make the tachometer works and uses LM2917N which is a frequency to voltage converter entirely useful on thise analog tachometer made by TYPE R.

CIRCUIT DESCRIPTION

The signal pin is connected to the primary input of the ignition coil. The meter connection to be use is meter (-) and will be connected to the wire that was supposedly connected on the CDI pin. which is pin 5 wire..calibration is done by VR1, and your done.


CONSTRUCTION

figure 2 shows the typical layout of the circuit.

Image not scaled.