I recently purchased a used boat, noticed that tach was not working so I replaced it. After installing new tach it to did not work either, ohmed out wiring from engine going to tach and found no shorts. Put volt meter on battery, observed voltage and cranked engine, voltage did go up after engine was started. Increased the idle up and voltage went also, but was jumping around. Is this a sign that the voltage/rectifier could be bad and not letting tach respond. When key is turned on, power is being sent to tach, there are 4 indicators on the bottom of tach and needle moves from below "0" to "0"
Home
Outboard Motor Parts
Chrysler outboard parts Evinrude outboard parts Force outboard parts Honda outboard parts Johnson outboard parts Mariner outboard parts Mercury outboard parts Suzuki outboard parts Tohatsu outboard parts Yamaha outboard partsInboard & Sterndrive Engine Parts
Chrysler Marine inboard parts Crusader Marine parts MerCruiser sterndrive parts OMC sterndrive parts Pleasurecraft Marine parts Volvo Penta marine parts + MoreAll Engine Brands
All Manuals HomeOutboard Repair Manuals
Chrysler outboard manuals Evinrude outboard manuals Force outboard manuals Honda outboard manuals Johnson outboard manuals Mariner outboard manualsMercury outboard manuals Nissan outboard manuals Suzuki outboard manuals Tohatsu outboard manuals Yamaha outboard manuals
Inboard & Sterndrive Engine Manuals
MerCruiser sterndrive manuals OMC sterndrive manuals Volvo Penta marine engine manualsPlease Note
MarineEngine.com does not offer troubleshooting assistance or repair advice by email or by telephone.
You are invited to join our public Boat Repair Forum to seek assistance from other members.
You may also visit the Boat Motor Manuals section of our site to obtain a service manual.