No RPM Readout after trike rebuild
I've just finished completely rebuilding my trike (full nut/ bolt, all wiring etc). The 80hp 912 has only 350hrs on it, the only engine work that was done was just cleaning up the exterior and powder coating the valve covers.
On it's first run up today since I've owned the aircraft, the RPM gauge is dead. I've checked continuity right back from the gauge to the engine pickup and the wiring buzzes out ok. The gauge is getting it's 12v and I tried swapping around the blue/ yellow & white yellow cables on the rear of the gauge but no luck.
Has anyone any suggestions of what to check next??
Many thanks
Steve