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Service bulletins for the 2021 Honda CRF300L

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

7 on file from NHTSA, as of 2026-10-19.

By type

By component

Bulletins, newest first
CRF300 #1 - August 20262026-08-24. Service bulletin. FUEL/PROPULSION SYSTEM. Service Bulletin - A fuel permeation test revealed that the fuel system does not meet regulatory standards. The fuel system has a lower than expected permeation value and is not within emission certification compliance.
MCPSC082020269022026-08-24. Other. FUEL/PROPULSION SYSTEM. Dealer Message -The full service bulletin and parts availability for the Emissions Recall relating to 2021-2025 CRF300L/LA/LDA FUEL SYSTEM (CRF300L #1) have been delayed until March 2027. Dealers will be notified again by iN message once the bulletin and parts become available.
ONLKT1042920262026-05-06. Emissions. FUEL/PROPULSION SYSTEM. "Owner Notification Letter - American Honda Motor, Inc. is conducting a voluntary recall for ALL 2021 - 2025 CRF300L/LA/LDA motorcycles. Our records indicate that you may own one of these motorcycles. This notice is sent to you in accordance with the Environmental Protection Agency regulations."
CRF300 #1 - February 20272026-03-03. Service bulletin. FUEL/PROPULSION SYSTEM. Service Bulletin - A fuel permeation test revealed that the fuel system does not meet regulatory standards. The fuel system has a lower than expected permeation value and is not within emission certification compliance.
MCPSC112020259032025-12-04. Other. FUEL/PROPULSION SYSTEM. Dealer Message - A fuel system permeation test revealed that the fuel system does not meet regulatory standards and is not in compliance.
CRF300L #1 - October 20252025-10-14. Service bulletin. FUEL/PROPULSION SYSTEM. Service Bulletin - A fuel permeation test revealed that the fuel system does not meet regulatory standards. The fuel system has a lower than expected permeation value and is not within emission certification compliance.
MCPSC100820259012025-10-14. Other. FUEL/PROPULSION SYSTEM. Dealer Message - A fuel permeation test revealed that the fuel system does not meet regulatory standards. The fuel system has a lower than expected permeation value and is not within emission certification compliance.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.