The Marine Knowledge Network
Field write-ups from real jobs - what broke, what fixed it, torque specs and part numbers included. Ask it a question; specs answer inline.
15 articles for “wiring”
Marine Batteries and Wiring Basics
... A battery can read fine and still collapse under cranking. ## Marine wiring rules that ...
Boat Trailer Lights and Wiring Troubleshooting
... 2. **Ground, ground, ground.** The white wire must land on clean bare trailer frame ...
Evinrude/Johnson Two-Stroke No-Spark Diagnosis
... 2. **Rule out the kill circuit first.** Disconnect the kill wire (commonly the black ...
Bilge Pump Setup Done Right
... 5. **Wiring:** marine tinned wire, connections **above** the highest bilge water line, adhesive-lined ...
Outboard Power Tilt/Trim Troubleshooting
... blue/green wiring is a common convention — verify with the wiring diagram). Voltage present ...
The On-Water Diagnosis Kit: What's Actually in the Bag
... always-used consumables - Common fuses, tinned wire, adhesive-lined heat shrink, quality crimper - Water ...
MerCruiser Winterization (Raw-Water-Cooled)
... 3. **Probe every drain hole** with wire — rust flakes and sand plug them, and ...
Outboard Overheating: A Diagnosis Flow That Doesn't Guess
... A failed temp sender or a corroded alarm wire causes plenty of false alarms ...
Pontoon Boat Inspection: Logs, Leaks, and Pre-Season Checks
... the pre-season walk - **Underdeck:** hanging wires, loose cross-member bolts, corroded fence-rail ...
Yamaha WaveRunner No-Start Diagnosis
... No click = start switch, wiring, or safety interlock. 4. Starter itself: PWC starters live ...
Anodes and Galvanic Corrosion, Explained for the Dock
... DC current** (a chafed bilge pump wire, a miswired dock neighbor) eats a drive ...
Quoting a Repower: The Mobile Mechanic's Guide
... usually want their own network displays) - Wiring harness, battery cables (gauge and length per ...
Spring Recommissioning Checklist: Outboard Boats
... power with the switch off (if wired that way). - Test nav lights, horn, gauges ...
MerCruiser Alpha One Bellows Inspection: The Boat-Sinker Check
... Battery disconnected before working near the starter and trim wiring.
Reading Marine Spark Plugs: A Diagnosis in Your Hand
... Inspect plug wires/coil boots while you're there; carbon-tracked boots re-foul ...