AIM Evo3 + MC Engine

[GBugg]

Anyone using an AIM data system on a MC powered car? I have a Yamaha R6 in my F600 and am having trouble getting the RPMs to read out. My harness has a wire coming from the ECU with the RPM signal (I get a good reading when I wire in a digital tach), and I've wired it according to the data sheet (pin 5 of the RPM connector), but no joy. The system worked on the 2-stroke F500 setup with a clip on a plug wire, but this motor has coils on each plug (and an ECU output just seems like a more elegant solution... if it works).

Any wisdom provided would be greatly appreciated.

[mjkhirvo]

I've used EVO4 on a R1 powerder car. I recall rpm was taken from yellow/black ECU wire.
Also used used a kart MyChron 3 for a while without any problems.

[Mike B]

When I ran the '07 R1 in my F1000, we were unable to get an RPM signal from the ECU and had to use the clip-on dealio from MSD. It's not elegant but it worked fine. This was with a Pi-2 dash but I don't think that matters.

[glenn cooper]

I'll look at it tonight, but you realize that's perhaps not going to be as enlightening as it first may appear, right?

[GBugg]

Ahhh, but just knowing I have the same setup that The Coop is running is worth a lot!

Thanks!

[Phil Creighton]

If a digital tach works you may need a resistor in the line. We had that issue on Stack tachs years ago - difference between ECU tach volt supply(less than 12v) and ground (0 volts) was not sufficient to trigger the rpm function which needed a min of 8 volts but would work a standard tach.
AIM is pretty helpful on bike stuff hookups.
Phil

[Joefisherff]

Go to Veracity and save yourself alot of time and headaches - they will solve it for you and have the parts you need for just about any data acquisition system:

http://veracitydata.com/Veracity_Rac...a/Welcome.html

Good Luck!

[GBugg]

Go to Veracity and save yourself alot of time and headaches - they will solve it for you and have the parts you need for just about any data acquisition system:

http://veracitydata.com/Veracity_Rac...a/Welcome.html

Good Luck!

Good answer!! David Ferguson is awesome! And the guys at HyperRacing know their 600cc stuff, too.

So, it seems you need a 2.2k ohm resistor between the signal line and 12v to pull the signal up on a Yamaha R6.