Topic: Hooking up a digital tach

[Deltarider]

The old 'digital' alarmclock I have (it shows digits and was therefore called digital) is in fact electric mechanical.
So we have things that we called digital back then, but are in fact analog and we have things that mimick analog and are in fact digital. Yes, it is a wonderful world. As long as you remember that in the process of tuning presentation in digits (dwell/tacho) can be a pain and make it more difficult than oldfashioned instruments (a tach in 20rpm increments is fine) You can see from the corner of your eye which way the needle moves.
The only time I worked with a 4-gas exhaustgasanalyzer I had to give up. Digits flickered all over the place. I prefer a simple CO-tester with a needle anytime.

[Wobbly]

Well, my RR instruments are described by BMW and in magazines like this:  "The instrument cluster is comprised of an analog tachometer and digital speedometer."
http://www.motorcycle.com/manufacturer/bmw-s-1000-rr.html
I also consider it--like most--an electronic analog instrument although, in reality, it might be a electronic and digital speedometer with analog display. But if this isn't confusing enough, did you know that the word "tachometer" is also German for speedometer while the tachometer in German is called a "Drehzahlmesser" (literally means "revolution meter"). Talking about confusing...So, if you buy a Tachometer in Germany, you end up with a speedometer. The useful things you learn when stationed here in Germany.

[wjustinleigh]

Since the alarm clock showed digits, I believe it would be electric, digital, mechanical and analog (by Webster's definition below).

def: of, relating to, or being a mechanism in which data is represented by continuously variable physical quantities (seems like the clock example applies)

[Doggie]

Thanks for all the help in hooking up my muti-meter to check my RPM's.    Doug

[ofreen]

Thanks for all the help in hooking up my muti-meter to check my RPM's.    Doug

And thanks to you for starting such an entertaining thread.

[Deltarider]

Since the alarm clock showed digits, I believe it would be electric, digital, mechanical and analog

Well, you certainly beat me there. 

Thanks for all the help in hooking up my muti-meter to check my RPM's.    Doug

Right you are. Please, inform us how it went.

[Brantley]

Thanks for all the help in hooking up my muti-meter to check my RPM's.    Doug

I hope I read this the right way 'cause I love a dry sense of humor.
But... It's been a while since I've wrenched on a 650, so I don't remember if there's an exposed point at the transistor ignition (under the pulser generator cover) to hook your meter's leads to (like where the blue and yellow wires connect to a points ignition). Make a temporary jumper between the most convenient blue or yellow bullet connectors with enough wire stripped between to hook it up, other lead to engine ground.

{bullet{===------==={bullet{
                      ^lead

My analog fingers sent this post digitally.

[Doggie]

I'm going out now to try it. With the tank off, I plan on hooking the meter up to the yellow wire at the coil and ground. I built a test stand out of PVC pipe where I have a small fuel tank, my (4) vac. gauges, and a spot for my multi-meter. It folds up and can be put away till the next bike. Anyone want the plans for building one?

                                                                                              Doug

                                                                                     

[Doggie]

Humor is the best medicine.     Doug