Capt. Rich
New member
I have a 1987 Marine Trader 50' Widebody with Lehman 275's. The port tach does not become energized until about 2000 RPM's. When I back off to cruising speed of about 1800 RPM's it bounces up an down for awhile until it settles in and reads properly.
Where is the resistance?
Where is the resistance?