Yamaha 1.8L Injector Wire Extensions – OEM Denso & Denso-to-EV1

Fix short factory injector wiring and expand your injector options

Yamaha 1.8L engines are known for short OEM injector wires that place constant tension on the injector plugs. Over time, this stress can crack plugs, damage wiring, and cause intermittent injector failures—especially on modified or frequently serviced skis.

Our Injector Wire Extension Kit solves this issue while also giving you the flexibility to run EV1-style injectors without cutting or modifying your factory harness. We also have the pigtail option to repair your broken plug that includes marine grade heat shrink 

🔧 What This Kit Does

• Extends factory injector wiring to eliminate stress on OEM plugs

• Prevents broken injector connectors caused by tight factory wiring

• Allows use of any EV1-style injector while keeping the OEM Yamaha harness

• Clean, plug-and-play installation—no splicing required