![]()
No images available
Tap to enlarge
![]()
2022 Yamaha YZ125 Overview
The 2022 Yamaha YZ125 is a cross / motocross motorcycle built around 125 cc of displacement. Under the tank sits a Single cylinder, two-stroke engine, a compression ratio of 10.7:1. The bore and stroke measures 54 x 54.5 mm. From a practical standpoint, the 2022 YZ125 tips the scales at 94.8 kg, carries a 6.81-litre fuel tank, offers a seat height of 39 mm and spans a 1445 mm wheelbase. Scroll down for the complete 2022 Yamaha YZ125 spec sheet covering every technical detail from suspension travel to tyre sizes.
2022 YZ125 - Pros & Cons
Strengths
-
📏
Accessible seat height: At 39 mm, the seat height is approachable for a wide range of rider heights and builds confidence in low-speed manoeuvring.
Considerations
-
🔧
Carburetor fuelling: Carbureted engines need occasional jetting attention and can be reluctant in cold weather or at altitude compared to modern fuel-injected alternatives.
Owner Experiences & Common Issues
Carburetor maintenance
Carburetors on the 2022 Yamaha YZ125 benefit from a clean and re-jet if the bike has been stored, run on stale fuel, or modified with an aftermarket exhaust. Owners frequently mention that fresh jets and float needle clips transforms throttle response from flat to crisp.
YZ125 - Buying & Maintenance Guide
What to check before buying
When inspecting a used 2022 Yamaha YZ125, start with the basics: check the service book for oil change frequency, inspect the chain and sprockets for wear, and look for oil seepage around the engine casings and rocker covers. A cold start test is invaluable - a well-maintained YZ125 should fire up cleanly and settle to a smooth idle within a few seconds.
Oil and filter changes
Regular oil changes are the single most important maintenance task on any YZ125. Stick to the manufacturer's interval - typically every 6,000 km or once a year, whichever comes first. The sump holds 0.70 litres, so budget for that volume of quality motorcycle-specific engine oil. Always use the correct viscosity grade as specified in the owner's manual.
Carburetor upkeep
Keep the carburetors clean and free of deposits. If the YZ125 has been stored, strip and clean the carb float bowls before attempting to start it. Pilot jets are the first to block and the last to be checked - always include them in any carb rebuild.
2022 Yamaha YZ125 - Frequently Asked Questions
What engine does the 2022 Yamaha YZ125 have?
The 2022 Yamaha YZ125 uses a Single cylinder, two-stroke engine with 125 cc of displacement.
How much does the 2022 Yamaha YZ125 weigh?
The 2022 Yamaha YZ125 weighs 94.8 kg. This is the manufacturer's wet figure.
What is the fuel tank capacity of the 2022 Yamaha YZ125?
The 2022 Yamaha YZ125 has a 6.81-litre fuel tank.
Is the 2022 Yamaha YZ125 suitable for shorter riders?
The 2022 Yamaha YZ125 has a seat height of 39 mm. This is a comfortable, accessible height for most riders.
What brakes does the 2022 Yamaha YZ125 have?
The 2022 Yamaha YZ125 uses Single disc. Hydraulic. at the front and Single disc. Hydraulic. at the rear.
What tyre sizes does the 2022 Yamaha YZ125 use?
The front tyre size on the 2022 Yamaha YZ125 is 80/100-21.
How much oil does the 2022 Yamaha YZ125 take?
The 2022 Yamaha YZ125 takes 0.70 litres of engine oil at a full oil and filter change. Always verify against the dipstick or sight glass after filling.
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
Weight
94.8 kg / 209.0 lbs
Fuel Capacity
6.81 litres / 1.80 US gallons
Advertisement
Full 2022 Yamaha YZ125 Specifications
Colours
Team Yamaha Blue
Warranty
30 Day Limited Factory Warranty
Ground Clearance (mm)
366 mm
Ground Clearance (in.)
14.4 inches
Seat Height
39 mm / 1.5 in.
Wheelbase
1445 mm / 56.9 in.
Height
1295 mm / 51.0 in.
Length
2136 mm / 84.1 in.
Width
826 mm / 32.5 in.
Oil Capacity (Quarts)
0.74 US quarts
Oil Capacity (l)
0.70 litres
Fuel Capacity
6.81 litres / 1.80 US gallons
Wet Weight
94.8 kg / 209.0 lbs
Engine Type
Single cylinder, two-stroke
Displacement (ci)
7.63 cubic inches
Bore x Stroke (in,)
2.1 x 2.1 inches
Bore x Stroke (mm)
54.0 x 54.5 mm
Displacement (cc)
125.0 cc
Engine Detail
Reed-valve-inducted
Fuel System
Carburettor. Keihin PWK38S
Compression Ratio
10.7:1
Engine Lubrication
Premix
Ignition
Digital CDI
Spark Plug
NGK BR9EVX, NGK BR9EIX
Starter
Kick
Clutch
Multiplate wet clutch
Final Drive
Chain (final drive)
Gearbox
6-speed
Primary Drive
Constant-mesh
Fork Tube Size (in.)
1.9 inches
Fork Tube Size (mm)
48 mm
Frame Type
Aluminum semi-double cradle
Suspension - Front
KYB® Speed-Sensitive System inverted fork; fully adjustable
Suspension - Rear
KYB® single shock; fully adjustable
Rake
26.0°
Trail
109 mm / 4.3 in.
Wheel Travel - Front
300 mm / 11.8 in.
Wheel Travel - Rear
315 mm / 12.4 in.
Brakes - Front
Single disc. Hydraulic.
Brakes - Rear
Single disc. Hydraulic.
Tyre Pressure - Front
15 PSI (1 Bar or 100 kPa)
Tyre Pressure - Rear
15 PSI (1 Bar or 100 kPa)
Tyres - Front
80/100-21
Advertisement