Yamaha Sr400, model years 2015 to 2018. Filed by Yamaha Motor Corporation, USA and reported to NHTSA on 16 October 2018. 1,902 vehicles potentially affected.
What the notice says Yamaha Motor Corporation, USA (Yamaha) is recalling certain 2015-2018 Yamaha SR400 motorcycles. The engine oil line flare nut may be insufficiently tightened, allowing oil to leak onto the rear tire.
Is your vehicle included? Check with your VIN at NHTSA, or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on.
What owners ask about this recall
- Which vehicles does recall 18V730 cover?
- Yamaha Sr400, model years 2015-2018.
- What is wrong with them?
- Yamaha Motor Corporation, USA (Yamaha) is recalling certain 2015-2018 Yamaha SR400 motorcycles. The engine oil line flare nut may be insufficiently tightened, allowing oil to leak onto the rear tire.
- What can happen if it is not put right?
- An oil leak onto the rear tire can cause a loss of control, increasing the risk of a crash.
- Is there a fix yet?
- Yes, and it is free. Yamaha will notify owners, and dealers will inspect the flare nut connection. If oil is not leaking, the nut will be tightened. If oil is leaking, the engine oil line will be replaced and the flare nut will be tightened, free of charge. The recall began October 31, 2018.
- What should I do now?
- Check your own vehicle by its VIN with NHTSA, which is the record to act on.
Answered from the register this site holds. NHTSA is the record to act on.
What the authority says can happen if this is not fixed: “An oil leak onto the rear tire can cause a loss of control, increasing the risk of a crash.”
affected
in the notice
caught
| Campaign | 18V730 |
|---|---|
| Filed by | Yamaha Motor Corporation, USA |
| System at fault | Engine And Engine Cooling:Engine |
| Reported to NHTSA | 16 October 2018 |
| Model years | 2015-2018 |
| Vehicles named | YAMAHA SR400 |
What the notice says today
The consequence
An oil leak onto the rear tire can cause a loss of control, increasing the risk of a crash.
The remedy
Yamaha will notify owners, and dealers will inspect the flare nut connection. If oil is not leaking, the nut will be tightened. If oil is leaking, the engine oil line will be replaced and the flare nut will be tightened, free of charge. The recall began October 31, 2018. Owners may contact Yamaha customer service at 1-800-962-7926.
What it said before
This campaign is in the register but not yet in the dated wording archive, so we cannot yet say whether its text has moved. It enters the archive on the next pass.
This is one of 588 notices in the record whose component field names engine and engine cooling. Across that group the median wait before owners were written to was 47 days.
Last checked . No change has been recorded in the wording.
How to cite this record
Quoting the wording on this page means quoting a version, so the date belongs in the citation:
CarsMultiverse, recall 18V730, wording as read on 16 September 2026. https://carsmultiverse.com/recall/18v730/
The cross-border matches used on this site are deposited as a citable dataset: doi:10.5281/zenodo.22087136. The recall wording itself is published by the national authority named above and is theirs, not ours.
The recall record and its wording are published by the US National Highway Traffic Safety Administration and are US Government public domain. The dated archive, the comparison and any before-and-after above are CarsMultiverse. How fresh every engine behind this page is, is public on the status page. To check a specific vehicle, use NHTSA’s own VIN lookup.
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The fingerprint of this notice
We take a SHA-256 of each of the three blocks of text the authority publishes and keep the first eight characters. As we last read campaign 18V730 on 23 August 2026, they were:
- Defect summary
511d77a5 - Consequence
82c85528 - Remedy
f0dd6f74
We first read this notice on 21 August 2026. It has not moved since. If it ever does, these characters will not match, and the change will be dated here.
The wording we hold for 18V730 · how the whole register is watched
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