# Service bulletin CRF300 \#1 \- February 2027

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.

- Type: Service bulletin
- NHTSA id: 11029287
- Published by NHTSA: 2026\-03\-03
- Manufacturer's number: CRF300 \#1 \- February 2027
- Manufacturer's date: 2026\-02\-26
- NHTSA component: FUEL/PROPULSION SYSTEM

## NHTSA's summary

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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11029287-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11029287-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Fuel system

## Vehicles listed

- 2021 to 2025 HONDA CRF300L

## Other bulletins for the same vehicles and component

- [CRF300 \#1 \- August 2026](/bulletins/11036335.md), 2026-08-24, 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.
- [MCPSC08202026902](/bulletins/11036329.md), 2026-08-24, 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.
- [ONLKT104292026](/bulletins/11032368.md), 2026-05-06, 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."
- [MCPSC11202025903](/bulletins/11026116.md), 2025-12-04, 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 2025](/bulletins/11024260.md), 2025-10-14, 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.
- [MCPSC10082025901](/bulletins/11024257.md), 2025-10-14, 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.

JSON: [/v1/bulletins/11029287](/v1/bulletins/11029287)

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