Yamaha YZ65 Review – Small Bike, Big Fun

The Yamaha YZ65 is one of those machines that punches above its size. Designed to bridge the gap between mini bikes and full-size motocross racers, it gives young riders a serious taste of real MX performance. This 2018 model in particular earned a reputation for being tough, lively, and surprisingly refined for its class.

Overview and first impressions

Yamaha built the YZ65 with the same DNA as its bigger YZ siblings. It’s a purpose-built motocross bike with a six-speed gearbox, liquid-cooled 65cc two-stroke engine, and adjustable KYB suspension front and rear.

The first thing you notice is how smooth and predictable it feels off the line. The clutch lever has an impressively light pull for a cable system, and the gearing is perfectly spaced for young riders learning to manage power. At low rpm, the YZ65 feels a little soft, but twist it higher into the revs and it absolutely screams. Once it’s “on the pipe,” it delivers that sharp, exciting hit of power that defines small two-strokes.

The bike sits slightly taller and wider than some of its European rivals, like the KTM 65 SX, which makes it ideal for taller kids or those ready to move up from a 50. Despite the extra size, it feels well-balanced and stable in corners, with predictable handling that inspires confidence.

Verdict box

Pros:

  • Light, easy clutch pull

  • Strong mid-to-top-end power

  • High-quality KYB suspension

  • Reliable and easy to start

  • Simple maintenance layout

Cons:

  • Slightly heavy compared to KTM 65 SX

  • Soft low-end torque

  • Taller seat height may not suit shorter riders

  • Air filter requires tools to access

Verdict:
A strong, confidence-building 65cc motocross bike that rewards developing riders with great handling and crisp two-stroke power.

Model-specific FAQ

How much power does the Yamaha YZ65 have?
The 65cc two-stroke engine produces around 16 horsepower, with most of its punch in the mid-to-top range — ideal for track riding.

Is the YZ65 good for beginners?
Yes, it’s suitable for young riders stepping up from a 50cc. Its smooth clutch action and manageable power make it easier to learn on, while still being competitive for racing.

What’s the seat height on the YZ65?
At about 755mm (29.7 inches), it’s slightly taller than the KTM 65 SX. This makes it better for riders with a bit more height or confidence.

Does the YZ65 have a hydraulic clutch?
No. It uses a cable-operated clutch, but the pull is surprisingly light thanks to Yamaha’s well-designed lever ratio and braided cable.

How does it compare to the KTM 65 SX?
The KTM is a touch lighter and has slightly more bottom-end power, but the YZ65 offers a smoother clutch feel, easier maintenance, and a more familiar setup for many riders.

Does the YZ65 overheat with only one radiator?
No. Yamaha’s single-side radiator design works efficiently, even during long rides, keeping the engine cool under race or trail conditions.

Closing thoughts

The Yamaha YZ65 is more than just an entry-level racer — it’s a full-blooded motocross machine scaled perfectly for youth riders. With its quick-revving two-stroke engine, quality suspension, and bulletproof reliability, it gives young riders the same excitement and challenge as a big bike, without the intimidation factor.

It’s a smart choice for those who want a dependable 65cc motocross bike for both racing and trail riding. Smooth clutch feel, strong brakes, and that signature Yamaha build quality make it a bike that’s easy to maintain and fun to push hard.

If you’re choosing a 65cc motocross bike that grows with your skill level, the Yamaha YZ65 is hard to overlook.