The oil seal behind the Mechanical Seal in the engine has Failed 3 times. Oil leaks from a small drain pipe on the bottom of the engine on the front right side, below the water pump assembly. When the Oil seal fails oil leaks from the drain pipe dripping oil in front of the rear wheel. I noticed this and see that the rear tire can contact the dripping oil and cause a slick and slippery situation where the rear wheel can loose traction and control, thus ending in bodily harm. The oil seal and mechanical seal failure is a know issue on the CRF 250 and 300 as they use the same bottom end of the motor. It is my advice for the federal safety agency to look into the issue have Honda re-engineer the Mechanical and Oil seals so there can be no failure. Luckily I have not had the oil seal fail to the point of an accident. I do not trust the motorcycle and will not ride it. Honda will not take it back thus I will sell or trade it to someone else with full disclosure. Sincerely, [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).
The worst 2021 Honda CRF300L problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Engine1
Problems by type
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- Engine1
Recalls 1
Exterior lighting
- What is wrong
- Honda (American Honda Motor Co.) is recalling certain 2020-2021 Super Cub C125, CB500X, CB650R, CBR300R, CBR500R, CBR650R, Rebel 300, Rebel 500, Monkey, 2020 CRF250L, GROM, 2021 CRF300L, and CB500F motorcycles. The rear reflector lens may not reflect brightly enough. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices, and Associated Equipment."
- Risk
- A dim rear reflector may reduce the visibility of the motorcycle to other drivers, increasing the risk of a crash or injury.
- Remedy
- Dealers will replace the rear reflector, free of charge. Owner notification letters were mailed July 7, 2021. Owners may contact Honda customer service at 1‑866‑784‑1870. Honda's number for this recall is KM3.
Recall number 21V382000 · Recall details
Technical service bulletins for the 2021 Honda CRF300L 7
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
What 2021 Honda CRF300L owners say
Most recent owner complaints, unedited.
Compare the 2021 Honda CRF300L
Other model years
20212023
Questions about the 2021 Honda CRF300L
Is the 2021 Honda CRF300L reliable?
Owners have filed 1 complaint about the 2021 Honda CRF300L, close to a typical CRF300L model year.
What is the most common problem with the 2021 Honda CRF300L?
Engine and cooling, with 1 complaint.
How many recalls does the 2021 Honda CRF300L have?
1 recall, covering exterior lighting.
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