Is my kill switch or lanyard stopping my outboard?

Kill switch / lanyard issues · Symptom: Won't start or cuts out suddenly.

Quick answer: Most often: lanyard clip missing/loose, wrong clip type, corroded/damaged stop switch or wiring. Start here: Attach lanyard and clip fully. If that doesn't fix it, work through the checks below, and see a marine mechanic if you're unsure.

Likely causes (most to least common)

1. Lanyard clip missing/loose
2. Wrong clip type
3. Corroded/damaged stop switch or wiring

Safe owner checks & fixes

1. Attach lanyard and clip fully.
2. Carry a spare lanyard.
3. Honda lists stop switch wiring leak / switch not returning as dealer items.
4. Always wear the lanyard — required for safety on many boats.

Parts / tools

Spare lanyard.

Call a marine mechanic when

Engine cuts out with lanyard attached (stop switch or wiring short — Honda lists as dealer item); switch doesn't return to run position. If you're on the water and unsafe, call TowBoatUS/Sea Tow or the Coast Guard (VHF 16).

Sources

• https://cf.hondappsv.com/files/OP/OP000105GLOBAL/Trouble%20shooting_BF75-100_EN.pdf
• https://defender.com/assets/pdf/yamaha/f15-f20-2022-owner-s-manual.pdf

Values not stated here are model-specific; check your owner's manual.

Related problems

• Why won't my outboard crank when I turn the key?
• Why does my outboard crank but not start?
• Why does my outboard start and then die?