2021 Yamaha MT-09 — Should You Buy One?
Typical asking price: $8,000–$11,500. This is one of the more reliable vehicles in its class — here's what to watch for anyway.
Kestrel Take
The MT-09 is the best bang-for-buck naked bike on the market — 117hp from a triple that revs freely, lightweight chassis, and a standard riding position that doesn't destroy your wrists. It's playful without being terrifying. The aggressive throttle is the most common complaint and it's a software issue, not a mechanical one. Solid used buy if the bodywork tells a boring story.
What we checked
Checked against public records, 2026-09-25
NHTSA holds 1 owner complaint for the 2021 Yamaha MT-09, and 2 recall campaigns.
That is too small a record to read a pattern from, so we are not going to pretend otherwise — with numbers this low one owner moves the percentage by a lot. What has been filed is grouped under electrics and electronics (1), the engine (1), the fuel system (1). Treat those as things to look at, not as the vehicle's known weaknesses. A thin file usually means few of these were sold or few owners filed. It is not evidence the vehicle is trouble-free, and the issues below are our own research rather than a reading of this record.
2 recall campaigns cover this model year. Recalls are repaired free, for any owner, with no time limit on most safety campaigns — but only if someone books it in. Ask the seller to show it was done, or have any dealer check the VIN; it takes them a couple of minutes and costs nothing.
Counts come from the NHTSA complaint and recall database — free, public, and worth checking yourself.
Known Issues for the 2021 Yamaha MT-09
Ranked by wallet impact. These are documented, recurring problems — not freak accidents. How we decide that.
The 890cc inline triple has a characteristic vibration between 4,000–5,500 RPM in certain gears — particularly noticeable on the highway at 70–80 mph. Not a mechanical issue, but something riders either love or find fatiguing.
Repair cost: Not a repair — rider preference; can be reduced with bar-end weights
Source: NHTSA complaints filed under the fuel system (1).
Even in the softest A-mode, the MT-09 has an on/off throttle characteristic that makes slow-speed riding trickier than it should be. The 2021 revised it but it's still snappier than competitors.
Repair cost (estimate): $0 — firmware update or aftermarket ECU flash available
Source: not yet checked against public records.
Walk-Away Red Flags
- ✗Front end damage — MT-09 riders tend to push it and the front end tells the story
- ✗Tire wear heavily on the right side — indicates aggressive right-lean riding or track use
- ✗Stunt modifications — the MT-09 is a popular stunt platform; wheelie bars, crash cages, etc.
Good Signs
- ✓Original tires with even wear pattern
- ✓Yamaha dealer service history
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Known issues on this page are based on documented owner reports, NHTSA complaints, class-action records, and manufacturer technical service bulletins. Individual vehicles vary. A pre-purchase inspection by a trusted mechanic is always worth doing.
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