140hp 1985 Evinrude. Last season tach would reach 4000 rpm then go back to 0.
Voltmeter would sometimes start climb to 15-16 volts. This signaled to me that
a new regulator/rectifier was probably needed. Installed new reg./rect. When I start
the engine there is no reading to tach- only a split...
1985 Evinrude 140. Changed powerpack 7 seasons ago. Part# 582530
Replaced all gauges last season. When running the boat, I now notice that the tachometer works fine up to 4000 rpms but falls back to zero once I increase
the RPMs. The voltmeter sometimes goes to 15-16 volts and only lowers if I...