2016 Yamaha YZ125 Specifications

Name: 2016 Yamaha YZ125
Brand: Yamaha

Cross / motocross • Specs last verified 13 July 2026

No images available

Tap to enlarge

2016 Yamaha YZ125 Overview

For 2016, Yamaha offers the YZ125 as a cross / motocross motorcycle. The 2016 Yamaha YZ125 is built around a Single cylinder, two-stroke engine, a compression ratio of 8.6:1. Internally, bore and stroke are 54 x 54.5 mm. In everyday use, the 2016 YZ125 tips the scales at 94.8 kg, carries a 7.95-litre fuel tank, offers a seat height of 975 mm and spans a 1,443 mm wheelbase. Every technical detail, from suspension travel to tyre sizes, is covered in the full 2016 Yamaha YZ125 spec sheet below.

2016 YZ125 - Pros & Cons

Strengths

Factory engineering: There's nothing exotic about the 2016 Yamaha YZ125's spec sheet - just solid, proven engineering for what it's meant to do.

Considerations

Carburetor fuelling: Carburetion is more hands-on than fuel injection - plan on periodic jetting and cleaning as part of routine ownership.
Tall seat height: A 975 mm seat puts flat-footing out of reach for a lot of riders - sit on it in person before committing.
Modest fuel capacity: A 7.95-litre tank keeps things light but means budgeting for more frequent fuel stops on any longer ride.
Chain final drive upkeep: A chain drivetrain is the most common setup in its class, but it's also the one that demands the most regular hands-on maintenance.

Wear Points & Servicing Notes

Carburetor maintenance

Being carbureted, the YZ125 is more sensitive to stale fuel and altitude changes than a fuel-injected bike - a carb clean and rejet restores crisp throttle response after any extended lay-up.

Brake disc and pad wear

Single disc. Hydraulic. up front provides the primary stopping power; inspect disc thickness and pad wear at each tyre change to catch scoring before it becomes a rotor replacement.

Suspension condition on used examples

Suspension duties are handled by Speed-sensitive system inverted fork up front and Fully adjustable single shock at the rear. Weeping fork seals aren't a dealbreaker on a used bike, but they're a fair basis for negotiating price.

Final drive maintenance

Chain final drive on the YZ125 means routine lubing and tension checks are part of ownership - skip them and sprocket wear accelerates noticeably.

Frame & chassis check

The Aluminum chassis holds up well with normal use; on a used bike it's still worth checking the head-stock and swingarm pivot area for impact damage or corrosion.

Low-speed handling

The YZ125's 94.8 kg kerb weight makes low-speed control noticeably less effort than on a heavier machine.

YZ125 - Buying & Maintenance Guide

What to check before buying

A pre-purchase check on the 2016 Yamaha YZ125 should cover the same ground every time: service history, chain and sprocket condition, and any oil seepage around the casings. Start it from cold if you can - a well-kept YZ125 settles to a smooth idle within seconds.

Oil and filter changes

Oil changes are the cheapest insurance you can buy for a YZ125's engine - keep to the manufacturer's interval rather than stretching it. Use the viscosity grade the manual specifies, not whatever's on sale.

Carburetor upkeep

A YZ125 that's sat unused is almost always a carb-cleaning job before it runs right again - float bowls and pilot jets first, since they clog before anything else.

2016 Yamaha YZ125 - Frequently Asked Questions

What engine does the 2016 Yamaha YZ125 have?

The 2016 Yamaha YZ125 is powered by a Single cylinder, two-stroke engine.

How much does the 2016 Yamaha YZ125 weigh?

The 2016 Yamaha YZ125 weighs 94.8 kg. This is the manufacturer's wet figure.

What is the fuel tank capacity of the 2016 Yamaha YZ125?

The 2016 Yamaha YZ125 has a 7.95-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 132-159 km between stops.

Is the 2016 Yamaha YZ125 suitable for shorter riders?

The 2016 Yamaha YZ125 has a seat height of 975 mm. This is towards the tall end of the spectrum and will require most riders under 175 cm to tiptoe at stops.

What brakes does the 2016 Yamaha YZ125 have?

The 2016 Yamaha YZ125 uses Single disc. Hydraulic. at the front and Single disc. Hydraulic. at the rear.

What tyre sizes does the 2016 Yamaha YZ125 use?

The 2016 Yamaha YZ125 runs 80/100-21 front and 100/90-19 rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.

What fuel system does the 2016 Yamaha YZ125 use?

The 2016 Yamaha YZ125 uses Carburettor. Mikuni TMX 38, providing precise fuelling across the rev range and reliable cold-start behaviour.

Yamaha YZ125 Spec Evolution

The Yamaha YZ125 was produced across 21 model years (2002-2023). The table below highlights the key specifications that changed across the production run - useful whether you are comparing years or tracking down a specific variant.

Specification	2002	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023
Wet Weight	-	-	-	-	-	-	94.3 kg / 208.0 lbs	94.3 kg / 208.0 lbs	94.4 kg / 208.0 lbs	94.4 kg / 208.0 lbs	93.9 kg / 207.0 lbs	93.9 kg / 207.0 lbs	94.8 kg / 209.0 lbs	94.8 kg / 209.0 lbs	94.8 kg / 209.0 lbs	93.9 kg / 207.0 lbs	93.9 kg / 207.0 lbs	93.9 kg / 207.0 lbs	93.9 kg / 207.0 lbs	94.8 kg / 209.0 lbs	94.8 kg / 209.0 lbs
Dry Weight	87.5 kg / 192.9 lbs	87 kg / 191.8 lbs	-	86 kg / 189.6 lbs	86.2 kg / 190.0 lbs	86.2 kg / 190.0 lbs	-	-	-	-	210.5 kg / 464.1 lbs	59 kg / 130.1 lbs	-	-	-	-	-	-	-	-	-
Engine Detail	-	-	-	-	-	-	-	-	-	Reed-valve inducted	Reed-valve-inducted	Reed-valve-inducted	Reed-valve-inducted	Reed-valve-inducted	Reed-valve-inducted	Reed-valve-inducted	Reed-valve-inducted	Reed-valve-inducted	Reed-valve-inducted	Reed-valve-inducted	Reed-valve-inducted
Engine Type	Single cylinder	Single cylinder	Single cylinder	V2	Single cylinder	Single cylinder	Single cylinder	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke
Top Speed	-	-	-	-	-	-	-	-	-	-	-	120.0 km/h / 74.6 mph	-	-	-	-	96.0 km/h / 59.7 mph	-	-	-	-
Seat Height	994 mm / 39.1 in.	992 mm / 39.1 in.	993 mm / 39.1 in.	998 mm / 39.3 in.	998 mm / 39.3 in.	998 mm / 39.3 in.	998 mm / 39.3 in.	998 mm / 39.3 in.	998 mm / 39.3 in.	998 mm / 39.3 in.	998 mm / 39.3 in.	998 mm / 39.3 in.	975 mm / 38.4 in.	975 mm / 38.4 in.	975 mm / 38.4 in.	975 mm / 38.4 in.	975 mm / 38.4 in.	975 mm / 38.4 in.	975 mm / 38.4 in.	39 mm / 1.5 in.	980 mm / 38.6 in.
Fuel Capacity	-	-	7.94 litres / 2.10 gallons	8.00 litres / 2.11 gallons	7.94 litres / 2.10 gallons	7.94 litres / 2.10 gallons	7.94 litres / 2.10 gallons	7.94 litres / 2.10 gallons	7.95 litres / 2.10 gallons	7.95 litres / 2.10 gallons	7.95 litres / 2.10 gallons	7.95 litres / 2.10 gallons	7.95 litres / 2.10 gallons	7.95 litres / 2.10 gallons	8.00 litres / 2.11 gallons	8.00 litres / 2.11 gallons	8.00 litres / 2.11 US gallons	8.00 litres / 2.11 US gallons	8.00 litres / 2.11 US gallons	6.81 litres / 1.80 US gallons	6.81 litres / 1.80 US gallons
Oil Capacity (Quarts)	-	-	-	-	-	-	-	-	0.05 quarts	-	-	-	-	-	0.05 quarts	0.05 quarts	0.74 US quarts	0.74 US quarts	0.74 US quarts	0.74 US quarts	0.74 US quarts

Key Specifications

Engine

Single cylinder, two-stroke

Power

Not published by manufacturer

Torque

Not published by manufacturer

Top Speed

Not published by manufacturer

Weight

94.8 kg / 209.0 lbs

Fuel Capacity

7.95 litres / 2.10 gallons

Full 2016 Yamaha YZ125 Specifications

Colours Team Yamaha Blue/White

Warranty 30 Day Limited Factory Warranty

Ground Clearance (in.) 14.4 inches

Ground Clearance (mm) 366 mm

Seat Height 975 mm / 38.4 in.

Wheelbase 1,443 mm / 56.8 in.

Height 1,295 mm / 51.0 in.

Length 2,136 mm / 84.1 in.

Width 828 mm / 32.6 in.

Fuel Capacity 7.95 litres / 2.10 gallons

Wet Weight 94.8 kg / 209.0 lbs

Bore x Stroke (in,) 2.1 x 2.1 inches

Bore x Stroke (mm) 54.0 x 54.5 mm

Engine Type Single cylinder, two-stroke

Engine Detail Reed-valve-inducted

Fuel System Carburettor. Mikuni TMX 38

Compression Ratio 8.6:1

Ignition CDI

Starter Kick

Final Drive Chain

Gearbox 6-speed

Frame Type Aluminum

Suspension - Front Speed-sensitive system inverted fork

Suspension - Rear Fully adjustable single shock

Rake 28.0°

Wheel Travel - Front 300 mm / 11.8 in.

Wheel Travel - Rear 315 mm / 12.4 in.

Brakes - Front Diameter (in.) 9.8 inches

Brakes - Front Diameter (mm) 250 mm

Brakes - Rear Diameter (in.) 9.6 inches

Brakes - Rear Diameter (mm) 245 mm

Brakes - Front Single disc. Hydraulic.

Brakes - Rear Single disc. Hydraulic.

Tyres - Front 80/100-21

Tyres - Rear 100/90-19

Specifications are compiled from manufacturer documentation and cross-referenced technical sources, and corrected on an ongoing basis. Spot an error? Let us know.