Ignition Switch Assembly – Fits Yamaha Outboard 6-300 HP (Replaces 703-82510-43-00)

Ignition Switch Assembly – Fits Yamaha Outboard 6-300 HP (Replaces 703-82510-43-00)

This ignition switch assembly is designed for a wide range of Yamaha 2-stroke and 4-stroke outboard motors from 6 to 300 horsepower, manufactured between 1998 and 2013. It is also compatible with the Yamaha International VMAX series (2002-2013) and specific 225/250 HP models from 2003.

This component is a direct replacement for several original Yamaha and aftermarket part numbers, ensuring a precise fit for your remote control box. It features OFF-ON-START operation with an integrated Push-to-Choke function.

• Installation: Mounts directly into the remote control box panel.
• Connection: Features a push-in connector with a protective sleeve.
• Package Includes: One ignition switch assembly and two keys.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Yamaha owners, here’s a guide to help you identify your engine’s serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.

Technical Specifications

Package Contents

• 1 x Ignition Switch Key Assembly (703-82510-43-00)
• 2 x Keys

Installation Guide

1. Disconnect the negative battery cable to prevent electrical shorts.
2. Locate and access the rear of your remote control box where the ignition switch is mounted.
3. Carefully unplug the wiring harness connector from the back of the old ignition switch.
4. Unscrew the mounting nut that secures the switch to the panel and remove the old assembly.
5. Insert the new ignition switch into the panel, align it correctly, and tighten the mounting nut.
6. Firmly push the wiring harness connector into the new switch until it clicks into place.
7. Reconnect the battery cable, insert the key, and test all switch positions (OFF, ON, START) to ensure proper function.

Troubleshooting & FAQ

Q: How do I confirm this ignition switch fits my Yamaha engine?
A: Start by checking the "Compatible Engine Models" and "Part Number Cross-Reference" tables on this page against your engine's model, year, and original part number. For additional help, use our Yamaha Serial Number Guide linked above to verify your details.

Q: What does the "Push-to-Choke" function do?
A: This feature allows you to prime the engine for a cold start. By pushing the key inwards while in the ON position, you activate the engine's choke (or fuel enrichment circuit), which makes starting a cold engine easier.

Q: My engine won't start after installing the new switch. What should I check?
A: First, double-check that the wiring harness connector is pushed in all the way and has clicked into place. Second, ensure you have properly reconnected the negative battery cable and that it is secure. Finally, verify that no fuses were blown during the installation process.

Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.