GY6 Wiring Harness (Ruckus / Maddog) - Tuck Harness

For years we sold our Rolling Wrench GY6 Ruckus “20-minute” harness that tied into the **factory Honda Ruckus wiring**. We loved that setup because it kept all the OEM Honda reliability and avoided the cheap, sketchy wiring you usually see on Chinese scooters.

But a lot of riders — especially Maddog owners and people doing full wire tucks — kept asking for a cleaner, fully custom harness solution. We didn’t want to release anything until it was truly dialed. After a ton of R&D… this is that harness.

This harness is different.
Instead of being one giant mystery loom, we designed it around **5 simple systems** that make the whole bike easier to understand and work on:

1. Accessories (this harness) – signals, lights, switches, etc.
2. Starting system – power/ground cables and starter solenoid
3. Ignition system – CDI box & ignition coil
4. Charging system – stator & rectifier/regulator
5. Fuel – EFI, electric Ruckus fuel pump, or vacuum fuel pump

By breaking it up this way, it’s way easier to upgrade individual systems, chase down issues, and wire tuck without losing your mind.

Benefits:
• Super clean layout — no more rats nest of random wires
• Easy to trace and diagnose any electrical issues
• Great platform for learning wiring if you’re new to it
• Perfect for GY6 Honda Ruckus builds, 150cc Maddog scooters, and other GY6 150–232cc machines with a **front-mounted battery**

This harness is specifically made to run in a **GY6 Honda Ruckus**. It’s plug and play in that application — no cutting, no splicing. If you’re using it on a **Maddog 150** or another GY6 platform, you’ll need to modify the ignition plug and headlight plug to match your machine. It’s straightforward stuff, but worth noting.

GY6 Ruckus Options – Full Wiring Solutions

Full GY6 EFI Ruckus wiring solution (parts needed):
• Tuck harness (this product)
• Starter wire / solenoid – CLICK HERE
• Ruckus switch kit – CLICK HERE
• Flasher relay – CLICK HERE
• 18 pole charging system upgrade kit – CLICK HERE
• GY6 EFI full auto tune system – CLICK HERE

Full GY6 carbureted Ruckus wiring solution (parts needed):
• Tuck harness (this product)
• Starter wire / solenoid – CLICK HERE
• Ruckus switch kit – CLICK HERE
• Flasher relay – CLICK HERE
• 18 pole charging system upgrade kit – CLICK HERE
• GY6 DC CDI / coil combo – CLICK HERE
• Pulser fuel pump kit – CLICK HERE

Maddog 150 Options – Full Wiring Solutions

Full 150cc fuel injected Maddog wiring solution (parts needed):
• Tuck harness (this product)
• Starter wire / solenoid – CLICK HERE
• Ruckus switch kit – CLICK HERE
• Flasher relay – CLICK HERE
• 18 pole charging system upgrade kit – CLICK HERE
• GY6 EFI full auto tune system – CLICK HERE

Full 150cc carbureted Maddog wiring solution (parts needed):
• Tuck harness (this product)
• Starter wire / solenoid – CLICK HERE
• Ruckus switch kit – CLICK HERE
• Flasher relay – CLICK HERE
• 18 pole charging system upgrade kit – CLICK HERE
• GY6 DC CDI / coil combo – CLICK HERE
• Pulser fuel pump kit – CLICK HERE

• This harness is the **accessory system** in our 5-part wiring approach (you still need starting, ignition, charging, and fuel systems).
• Plug-and-play on GY6 Honda Ruckus builds with front-mounted battery.
• On Maddog 150 and other GY6 scooters, you’ll need to modify the ignition and headlight plugs — it’s simple, but not 100% plug-and-play.
• Designed to make wire tucks easier and troubleshooting way less stressful.

Rear harness pinout (color chart):
• Left blinker = Orange
• Right blinker = Blue
• Blinker ground (optional) = Green dual plug
• Taillight / running light = Black
• Brake light = Yellow
• Brake light ground = Green
• 12V key on = White
• 12V key on, kill switch OFF = Brown

Still confused or planning a full build?
Let us spec your parts list for you: CLICK HERE