MOTO1988 Starter Solenoid Relay for Yamaha motorcycles — 30A M-B square-plug kit with relay plug, bolts & fuses

MOTO1988's Starter Solenoid Relay M-B is a direct-replacement 30A square-plug relay kit engineered to restore reliable starter activation on a wide range of Yamaha motorcycles and snowmobiles.

This compact relay assembly replaces worn or failed starter solenoids and comes as a ready-to-install kit with relay plugs, mounting bolts, and two 30A fuses. It matches multiple Yamaha OEM part numbers and model years so you can confirm fitment before purchase. The relay is designed for straightforward installation and integration with existing wiring harnesses on compatible bikes and snow machines.

Which Yamaha models will this relay fit?

The relay kit lists many compatible Yamaha motorcycles and snowmobiles spanning cruisers, sportbikes, dual-sports, and ATVs across multiple years. Use the included OEM numbers and the detailed model list to match your vehicle before ordering. Fitment covers popular models like YFZ450, YZF-R1, YZF-R6, FZ1/FZS1000, FJR1300, V-Star/XVS series, XT250, WR250R, and several snowmobile variants.

• Includes OEM part cross-references: 5JW-81940-02-00, 4YR-81940-02-00, 2C0-81940-00-00 and others.
• Compatible years and series explicitly listed for verification.
• Supports both motorcycle and snowmobile applications where the square M-B plug is used.

What comes in the package and how does it simplify replacement?

The kit arrives with a 30A M-B square plug relay, a relay plug adapter, two mounting bolts, and two spare 30A fuses — everything needed to swap a failed solenoid relay in most installations. The included hardware reduces the need for additional parts, and the spare fuses let you test the circuit without hunting for replacements. The relay plug matches the M-B connector style used on the listed Yamaha models for a plug-and-play experience.

• 1x 30A M-B square plug relay for direct replacement.
• 1x relay plug adapter to ensure connector compatibility.
• 2x bolts for secure mounting and 2x 30A fuses for circuit protection.

How do I confirm this is the right relay for my bike?

Confirm fitment by comparing the OEM part numbers or checking the model-year list provided with your vehicle's service manual or existing relay label. Visual comparison of the M-B square plug and terminal layout is a practical way to ensure compatibility. If in doubt, capture a photo of your current relay and compare connector shape, mounting holes, and fuse ratings to those listed.

• Compare OEM numbers printed on your old relay to the listed part numbers.
• Match connector shape and terminal layout to ensure plug compatibility.
• Reference the product’s model-year fitment list before purchasing.

Is there support or warranty if I have problems?

MOTO1988 provides after-sales support and a one-year product service for purchases, plus responsive email assistance for installation or fitment questions. If you encounter functional issues, reach out via the seller’s contact channel to initiate troubleshooting or warranty steps. Keep your order information and photos handy to speed up the support process.

• 24-hour customer service availability via email for questions.
• 1-year product service covering manufacturing-related faults.
• Keep OEM references and purchase details for faster assistance.

Who is this for: This starter solenoid relay kit is intended for Yamaha owners, mechanics, and restoration enthusiasts who need an affordable, OEM-referenced replacement for a failed starter relay. It suits riders maintaining sportbikes, cruisers, touring machines, dual-sport bikes, ATVs, and owners of compatible Yamaha snowmobiles who require a plug-compatible, installation-ready relay and spare fuses for quick roadside repairs or workshop swaps.