Quote Originally Posted by rjdubiel View Post
What was the issue with the tach? I have a PM that my tack seems funky, it drops some when the trim is used. at higher RPM not an issue, but lower RPM it moves and just does not seem exactly correct. Even my digital tach on my EGT's is not not working at all. Was all good and very close to each other with my 280 on the boat but 16 amp electrics on that.
I chased dropping tach signals on my boat early this season. 225pm w/40 amp. Couldn't get VR's to last, went through everything a million times with same result. Finally pulled the insulation of part of my battery cable, lots of green corrosion. Swapped it, problems totally gone.