Plug Wires | Honda Outboard

Shop Honda outboard plug wires designed to deliver consistent ignition voltage from the coil to the spark plug. High quality plug wires are essential for strong spark, smooth idle, and dependable engine performance during maintenance, troubleshooting, and rebuild projects.

Choosing the Right Honda Plug Wires

Plug wires must match your Honda outboard ignition system and engine configuration. Always confirm your exact model, horsepower, and serial number before ordering.

• Correct length and boot style: verify proper routing and terminal fitment at both the coil and spark plug.
• Heat resistance: marine ignition wires must withstand engine compartment temperatures.
• Secure connection: inspect terminals for corrosion or loose fit before installation.
• Replace as a set when needed: uneven resistance between wires can affect ignition balance.

Common Honda Plug Wire Problems

• Rough idle or misfire: damaged insulation or internal resistance causing weak spark delivery.
• Hard starting: voltage leakage reducing spark intensity at the plug.
• Engine hesitation under load: intermittent ignition breakdown at higher RPM.
• Visible arcing: cracked insulation allowing spark to ground before reaching the plug.

Ignition problems can also be caused by voltage drop, poor grounding, weak battery output, or corroded wiring connections. For help selecting proper marine grade wire and understanding amperage drop, review our Marine Wire Selection and Amperage Drop Guide.

Related Honda Electrical Categories

• Spark Plugs
• Coils
• Fuses and Breakers

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