Dot Heton
XS650 Enthusiast
I'd like to get rid of my mechanical drive tach, what options do I have?
I'd like to get rid of my mechanical drive tach, what options do I have?
I used Danmoto. Works really well, a lot cheaper than the other options. I used the Streetfighter SP2, but you might like another style. They have a retro style available now.
http://www.ebay.com/sch/i.html?_sacat=0&_from=R40&_nkw=danmoto&_dmpt=Motorcycles_Parts_Accessories&Part%2520Type=Gauges&rt=nc
Not to hijack but-- if you were sticking with the old school points (72xs650) and not going to an electronic ignition-- would any of the options listed work or do you have to have an upgraded ignition?
Pamco Pete said:Be aware that any electronic ignition, including the PAMCO produces a higher voltage on the negative terminal when the transistor opens the circuit. In the case of the PAMCO, that voltage will peak at 420 Volts. A typical points system will only peak to about half of that, so it's important that your tach is made for an electronic ignition system.
Danmoto said:Our gauge uses a 12V input signal for the rev counter, as this is what's
standart on most bikes(with electronical ignition)
Bikes with the older mechanical ignition normaly run on the same, except
some very old 6V systems.
I think there is a missunderstanding here between the "hot" side of the
coil(which creates the spark) and the control circuit, which transmits
the signal from the ignition to the coil.
The control circuit runs normaly on system voltage(in this case 12V) and
then open/closes against ground to create a signal.
The created voltage( on the "hot" side) is much higher than system voltage.