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Hi, I would like install one KOSO instrument in my ETZ 251. I have the electronic ignition from powerdynamo.com. The tachometer work with one sensor in front wheel, this is not difficult to install. I can install too, one temperature sensor in the Cylinder head. My problem is set up the RPM in my ETZ 251. I dont understand much about this so I would like somebody help me understand where and how can I install the RPM

koso manual





electronic ignition



etz plan

I would try to get the signal from yellow wire between sensor and ignition coil with rpm wire set A. But i´m not sure, please wait for other answers.

-- Hinzugefügt: Do 15. Apr 2010, 15:25 --

Bad news: push At first you should find out internal ratio of the Coso instrument, if you did it, you should contact Powerdynamo GmbH directly and describe your problem to them.

Thank for help. I hope some body try this install in the future, I will but not know. thank

Installation finished successfully, or have you given up?