Vlakvark Posted July 19, 2017 Report Posted July 19, 2017 (edited) Good evening floks. I need help finding out why the RPM is moving up and down. Any help IMG_0044.MOV Edited July 19, 2017 by Vlakvark
Marauder Posted July 19, 2017 Report Posted July 19, 2017 9 hours ago, Vlakvark said: Good evening floks. I need help finding out why the RPM is moving up and down. Any help IMG_0044.MOV The JPIs I believe pickup the RPM from either on the mag or on the ignition key. It looks like you have a loose connection. I had a similar issue on my JPI 900's displaying of the EGT on one of my cylinders. It was jumping around like this.
kortopates Posted July 19, 2017 Report Posted July 19, 2017 12 minutes ago, Marauder said: The JPIs I believe pickup the RPM from either on the mag or on the ignition key. It looks like you have a loose connection. I had a similar issue on my JPI 900's displaying of the EGT on one of my cylinders. It was jumping around like this. Yes, I assume slick mags and its on the port of the one of the mags. looks like an electrical connection issue but should be easy enough to tell from inspecting it at the magneto.
jackn Posted July 19, 2017 Report Posted July 19, 2017 Probably on the right(copilot) side. It might just be a loose connection.
Vlakvark Posted July 19, 2017 Author Report Posted July 19, 2017 Thank you. This started after we replaced the alternator
Vlakvark Posted September 29, 2017 Author Report Posted September 29, 2017 We found that the new alternator was creating the spike on the RPM. We have moved the wire to the bottom of the alternator and all is good. 1
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