Yamaha Xt 660
The Yamaha Xt 660 has a top speed of 165 km/h, produces 48 hp and weighs 179 kg. Motoryk rates it 7.5/10.
The Yamaha XT660R was introduced in 2004 as a successor to the long-running XT600 series, featuring a modernized single-cylinder engine and updated chassis to compete in the dual-sport segment. It was offered in two variants: the XT660R (enduro/dual-sport) and the XT660X (supermoto), both sharing the same core engine platform. The model gained popularity for its reliability, low maintenance costs, and versatility, remaining in production largely unchanged until around 2016-2017.
48 hp
Power
60 Nm
Torque
179 kg
Weight
165 km/h
Top Speed
4.5 L/100km (approx. 22 km/L typical real-world average)
Fuel
Naked
Body
Video Review
What Buyers Should Know
Rock-Solid Engine Reliability
The XT660's single-cylinder 660cc engine is renowned for longevity, often exceeding 100,000 km with basic maintenance. It shares DNA with Yamaha's proven XT lineage, making parts widely available and affordable.
Watch the Cooling System
The XT660R/X models can run hot in heavy city traffic, so inspect the radiator and coolant hoses carefully on used bikes. Overheating issues are common when the cooling system is neglected.
Strong Resale Value
The XT660 holds its value exceptionally well due to its dual-sport versatility and cult following among adventure riders. A well-maintained example typically retains 60-70% of its value after five years.
Generations & Specs by Year
Single-generation model; 659cc single-cylinder engine, launched as XT660R (dual-sport) and XT660X (supermoto) variants simultaneously.
"Bulletproof thumper that rewards patience over speed."
The 660 single pulls hard from 3,000 rpm with that satisfying thud you either love or hate, and on B-roads it feels genuinely quick despite the modest 48 horsepower. I covered 40,000 km on mine across Spain and Morocco and the engine never so much as hiccupped — oil changes, valve checks, done. The weak spots are real though: that bench seat turns into a torture rack after two hours, fuelling can surge annoyingly at town speeds, and the 870mm saddle height makes shorter riders do an embarrassing tiptoe dance at traffic lights. The XT660R version soaks up dirt tracks with reasonable composure, but don't kid yourself into thinking this replaces a proper enduro bike once the trail gets technical.
Pros
Cons
Used Buyer Review
"A dependable workhorse that rewards sensible buyers willing to inspect carefully."
$3,500-$6,500 usedThe XT660 is one of those bikes that quietly gets the job done without any drama. Yamaha built these things like tanks — the 660cc single thumps along reliably for years if the previous owner wasn't an idiot about oil changes. Check the valve clearances first thing, because they get neglected and a tight valve will ruin your day faster than anything else. The fuel tap O-rings are a known weak point too, so smell the airbox before you hand over cash. Riding it honestly? It's not exciting. The single-cylinder character is satisfying in a workhorse way, but don't expect it to set your pulse racing on a Sunday blast. It handles competently, sits upright and comfortable, and will genuinely do light trails if you're not being stupid about it. The Z model with spoked wheels is the one to hunt for used — far more versatile than the cast-wheel version. Prices have crept up because reliability reputation travels. Don't overpay for high-mileage examples — these aren't rare, patient shopping rewards you.
Top 10 Accessories
Curated picks for the Yamaha Xt 660 — owned, ridden, recommended.
Common Problems
🔥 1 CRITICALListen for ticking noise on cold start
Inspect welds and joints for cracks or soot
Test idle stability and throttle response
Look for oil residue below fork tubes
✅Pre-Purchase Checklist
Solid thumper, reliable with basic maintenance
Full Specifications
Rivals & Alternatives
Bikes that buyers cross-shop with the Yamaha Xt 660
Honda Xr650l
Swm Superdual 650
Suzuki Dr 650
Yamaha Xt600
Yamaha Xt660r
Compare Yamaha Xt 660 Side-by-Side
compare_arrowsSpecs, power, weight & buyer verdict — head-to-head with the bikes most often cross-shopped.
Yamaha Xt 660 vs Honda Xr650l
Specs · Power · Buyer verdict
Yamaha Xt 660 vs Swm Superdual 650
Specs · Power · Buyer verdict
Yamaha Xt 660 vs Suzuki Dr 650
Specs · Power · Buyer verdict
Yamaha Xt 660 vs Yamaha Xt600
Specs · Power · Buyer verdict
Yamaha Xt 660 vs Yamaha Xt660r
Specs · Power · Buyer verdict
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Discussion
Frequently Asked Questions
What are common problems with the Yamaha Xt 660? +
Cam chain tensioner rattle on startup: Listen for ticking noise on cold start (moderate) | Cracked or warped exhaust header pipe: Inspect welds and joints for cracks or soot (moderate) | Throttle position sensor failure causing rough idle: Test idle stability and throttle response (serious)
Is the Yamaha Xt 660 a good motorcycle? +
A dependable workhorse that rewards sensible buyers willing to inspect carefully. Rating: 7.5/10. Best for: Commuters and light adventure riders wanting reliability. Avoid if: You want thrills or serious off-road capability.
What is the horsepower of the Yamaha Xt 660? +
The Yamaha Xt 660 produces 48 hp @ 6,000 rpm, with 60 Nm @ 5,250 rpm of torque. Top speed: 165 km/h.
Is the Yamaha Xt 660 good for beginners? +
Yes — the Yamaha Xt 660 is a reasonable choice for new riders (48 hp is manageable), weighing 179 kg. Commuters and light adventure riders wanting reliability
Is the Yamaha Xt 660 reliable? +
Owners report 1 critical issue to watch for on the Yamaha Xt 660, notably: Throttle position sensor failure causing rough idle (Test idle stability and throttle response). Buy with a pre-purchase inspection.
Is the Yamaha Xt 660 good for daily use? +
Commuters and light adventure riders wanting reliability Fuel: 4.5 L/100km (approx. 22 km/L typical real-world average).
How fast is the Yamaha Xt 660? +
The Yamaha Xt 660 reaches a top speed of 165 km/h, producing 48 hp at 179 kg curb weight. Real-world performance depends on rider weight, gearing, and road conditions.
What gear should I buy for a Yamaha Xt 660? +
Motoryk has curated a Top 10 gear list specifically for the Yamaha Xt 660, covering engine oil, tires, chain, battery, and brake pads — see motoryk.com/bikes/yamaha/xt-660/top10. Each pick is matched to this bike's spec.
