This is great news. It took some research to come up with a solution. Thankfully, it was a cheap solution. I had all the bits to build it in my stash of connectors and components. If I get chance I will post the schematics for the device and get it made a sticky. As these bikes get older the electronics will start playing up. If you see a cheap ECU or dash on eBay then buy it and squirrel it away for a rainy day. Glad to have helped out. Pay it forward.
I think myself extremely fortunate and will certainly do my best to aid anyone where I can. It's been quite the crash course, and without the support of this forum (and special mention to ChrisW), I am confident that my Tacho would have never worked again!
@El Toro is there a way to extract this and make it a sticky in the technical section. The circuit was developed to address an issue on an IAW16 ECU but it may work on other ECUs that use a square wave on the Tachometer signal. The idea is that the square wave signal is boosted to 12v. Components needed 1 x N27000 Mosfet 2 x 1 KOhm resistor Copper backed circuit board to solder components onto 4 x lengths of wire The only wire from the ecu that needs cutting is from Pin 24 on the ECU to the tacho
I think it's very kind of you to supply details Chris - I can think of several other professions where they would sit on this in secrecy and cash in at the appropriate time.
I agree, this should be a permanent guide on the technical section. However I did read recently that P8 ECU tacho's are not compatible with IAW 16's???
