Yamaha 703 Side-Mount Remote Control (7-pin) – No Trim, for 9.9–30HP Engines

This Yamaha 703 (7-pin) side-mount control box is the standard solution for remotely operating small to mid-size Yamaha outboard engines. Designed for engines with electric start but without power trim, the 703 model (part no. 703-48230-14-00) provides all the essential functions needed to control your boat’s engine from the helm. The single dual-action lever allows the operator to throttle up and shift gears (forward/reverse) with one hand, greatly simplifying maneuvering – especially in tight quarters or during docking operations.

The control box comes fully equipped with integrated electronics: built into the unit are the ignition key switch (eliminating the need for a separate ignition panel) and a safety kill-switch with a pull-out lanyard that attaches to the operator. In an emergency where the operator is displaced from the helm, the lanyard pulls out and immediately stops the engine – a critical safety feature for fast boats or personal watercraft. Additionally, the 703 includes a neutral warm-up feature (usually activated by pulling out or depressing a small lever or button on the unit), which allows you to advance the throttle without engaging the propeller. This is useful for warming up the engine in the morning or adjusting the idle speed while the engine is in neutral.

Recommended Use: The Yamaha 703 (7-pin) is the perfect remote control for boats powered by Yamaha engines in the 8–10 HP up to roughly 25–30 HP range (for example, popular 15 HP, 20 HP, 25 HP models that often feature electric start). Typical applications include small fishing boats, aluminum utility boats, RIBs up to about 4–5 meters, as well as auxiliary outboards on sailing yachts. The control box mounts on the side of the boat – usually on the starboard interior gunwale or on a side console. Installation involves routing the included 7-pin main harness (approx. 16 ft length) to the engine and plugging it into the engine’s matching connector (it’s directly compatible with Yamaha’s wiring harness plug).

Once installed, operating your outboard becomes far more convenient: instead of reaching back to the engine’s tiller, you have the throttle/shift lever right at your steering position. This allows precise throttle adjustments and instant gear changes, which are crucial for close-quarters handling. The built-in friction adjustment on the lever prevents engine vibrations from unintentionally changing the throttle setting. As a genuine Yamaha part, the 703 control box is built with high-quality, marine-grade materials that withstand UV exposure, saltwater, and frequent use. With this unit, your small boat gains a level of control typically found on larger vessels, giving you confidence and precision in every maneuver.