Yamaha Xmax 300 Guide Stopper 1 (B74-E2231-00)

The Yamaha XMAX 300 Guide Stopper 1 (B74‑E2231‑00) is a precision engine component that helps correctly position and retain specific parts within the XMAX 300’s internal assembly. A guide stopper typically interfaces with moving parts such as the crankshaft, transmission selector components, or timing mechanisms, ensuring that they follow their intended paths without excessive lateral movement.

Made to Yamaha’s exact specifications, this guide stopper is manufactured from durable materials that resist wear, heat, and vibration associated with normal engine and transmission operation. Over time and with extended use, original guide stoppers can wear, chip, or lose effectiveness due to mechanical stress. Replacing a worn or damaged guide stopper with this genuine‑style part helps restore precise part alignment, reduces unwanted play, and supports smoother mechanical operation. This contributes to overall drivetrain reliability and longevity.