Yamaha TTR125: At a Glance

The Yamaha TTR125 is one of the most popular motorcycles on the market today. It’s a great option for beginner riders or experienced riders looking for a reliable, well-built bike. The TTR125 has been around since 1997 and has a long history of reliability, performance, and affordability. Let’s take an in-depth look at this iconic motorcycle.
Performance & Reliability
The Yamaha TTR125 is powered by a 124cc four-stroke engine that produces 8.8 horsepower and 6.6 lbs/ft of torque. This makes it perfect for beginner riders as it provides plenty of power to get up to speed quickly but not too much power to be intimidating. The engine is also reliable and easy to maintain with its air-cooled design and electric start system. Additionally, the bike comes with front and rear disc brakes for improved stopping power when you need it most.
Design & Comfort
The Yamaha TTR125 is designed to provide a comfortable ride, even over long distances or rough terrain. The seat height is adjustable so you can find the right fit for your height and weight and the wide handlebars help you stay in control while navigating around obstacles on the trail. Additionally, the frame is lightweight yet durable, making it easy to maneuver while still providing stability on uneven terrain. Finally, there are plenty of aftermarket parts available if you want to customize your bike further down the road.
Price & Value
The Yamaha TTR125 is an incredibly affordable bike; it retails for under $3,500 brand new! That’s significantly less than many other models on the market today which makes it perfect for beginners who don’t want to break the bank when getting into riding motorcycles. Additionally, used models are often available at even lower prices making them an even better value proposition for those just starting out.
Who Is the TTR 125 For?
The Yamaha TTR125 is designed for riders 10 years old or older. Thanks to its mellow power delivery, it can also be ridden by adults, making it an ideal choice for families who want to ride together. However, if you are a serious biker looking for a powerful machine with advanced features, then the Yamaha TTR125 may not be for you.
What Are the Weight Limits?
The weight limit for the Yamaha TTR125 is 220 lbs (100 kg). That means that riders who weigh more than this should look at larger models such as the TT-R 230 or TT-R 250 instead. It’s important to keep in mind that these weight limits are there to protect both you and your bike from damage in case of an accident.
Exploring the Differences between Yamaha TTR and YZ 125

Are you looking to buy a new dirt bike? If so, then it’s likely that you have stumbled across two of the most popular models—the Yamaha TTR and the YZ 125. Both are great options, but they are quite different from each other. To help you decide which one is right for you, let’s take a closer look at the differences between these two bikes.
The Yamaha TTR 125 is a beginner-friendly bike with a 4-stroke engine. The bike can be ridden in both wet and dry conditions without any problems, making it suitable for any terrain. The TTR has an impressive power-to-weight ratio, which makes it easy to control even on more challenging trails. It also has an air-cooled engine that helps keep it running smoothly while providing plenty of torque and power when needed. Lastly, the TTR is designed to be comfortable in all riding positions thanks to its ergonomic design and large fuel tank capacity.
The YZ 125 is another popular dirt bike from Yamaha, but this one is geared towards more experienced riders who want a powerful 2-stroke engine. This bike has a higher top speed than the TTR and can handle much rougher terrain with ease. The YZ has some impressive suspension features such as adjustable rebound damping and spring preload adjustment that make cornering easier than ever before. Moreover, this model comes with an electric start feature that makes getting out on the trail faster than ever before.
Yamaha’s TTR125 Engine and Power

The Yamaha TTR125 is a popular dirt bike among beginners and experienced bikers alike. It’s lightweight, easy to handle, and has plenty of power. But just how much power does it have? Let’s take a look at the specific engine specs and see what makes this bike so great.
The Yamaha TTR125 is powered by an air-cooled, four-stroke single cylinder engine with a displacement of 124cc. This engine produces 10 horsepower at 7500 rpm, with a maximum torque output of 8.4 Nm at 6500 rpm. Its 4-speed gearbox (one down three up) provides smooth shifting between gears for easy acceleration and deceleration. The bike also comes equipped with an automatic clutch system that eliminates the need for manual clutch operation when shifting gears, making it even easier for beginner riders to control the bike without having to worry about stalling out or losing control.
For more experienced riders, the TTR125 offers plenty of power to get up to speed quickly while still being light enough and manageable enough to be controlled in off-road conditions. The suspension system features adjustable front forks that provide 5 inches of travel as well as a rear shock absorber with 3 inches of travel for better handling on uneven terrain. This combination of powerful engine performance and reliable suspension technology provides riders with an enjoyable riding experience regardless of their experience level or terrain conditions.
The Yamaha TTR125 is one of the most popular dirt bikes available today thanks to its combination of powerful performance, lightweight design, and easy handling capabilities. It’s perfect for both beginner and experienced bikers who want a fun ride without having to worry about complicated engine maintenance or tricky gear changes. So if you’re looking for a reliable dirt bike that can give you hours of enjoyable riding, then the Yamaha TTR125 should definitely be on your list!
Horsepower vs Torque
The Yamaha TTR125 has an impressive 8 HP and 10 lb-ft of torque. While horsepower determines how fast you can go, torque is what gives your bike power and acceleration. The higher the number, the more power your engine produces. Therefore, with its 10 lb-ft of torque, the Yamaha TTR125 is sure to provide plenty of power when you need it most!
Top Speed
The top speed of this bike is between 45 – 60 mph depending on modifications made. This makes it great for cruising around town or taking off-road trails safely. It’s important to remember that these speeds are only achievable with proper maintenance and tuning of your engine. The Yamaha TTR125 is designed for fun, so make sure you keep up on tune ups for optimal performance!
Granny Gear Transmission
The Granny Gear transmission technology found in the Yamaha TTR125 makes it easier to shift gears without having to worry about stalling out in between shifts. This feature also helps conserve fuel since there are fewer wasted revs in between shifts as well as reduced wear on the drivetrain components due to less aggressive shifting patterns. This type of transmission technology ensures that your bike runs smoothly and efficiently throughout its life!
Electric Start – Is It Necessary?
Yes! Electric start allows you to quickly get going with just a push of a button rather than having to kick start your engine every time you want to ride. Not only does this save time but it also reduces wear and tear on your starter motor over time as well as reduces noise pollution in populated areas where loud engines may be frowned upon! Plus, if something ever goes wrong while out riding, electric start makes getting back home much easier too! Are All TTR 125 Engines The Same? No – different versions will have different specs depending on their intended use. For example, some bikes will be optimized for off-roading performance while others may be geared more towards street riding or even racing applications. So before purchasing any version of the Yamaha TTR125 make sure you understand exactly which type of engine best suits your needs first!
Yamaha TTR125 Handling
Power and Control
The Yamaha TTR125 comes with a powerful 125cc air-cooled four-stroke engine that offers plenty of power for almost any situation. The bike also has an adjustable suspension system that gives you maximum control over your ride. This suspension system allows you to customize your ride for different terrains and adjust it according to your preferences or riding conditions.
Durability
The Yamaha TTR125 is made from high-quality materials, making it incredibly durable and resistant to wear and tear even in tough conditions. The frame is made from steel and features an ergonomic design that helps reduce fatigue while riding. Additionally, the bike has a low center of gravity, which helps keep it stable on uneven ground or when cornering at high speeds.
Off-Road Capabilities
The Yamaha TTR125 is designed to tackle any terrain with ease, including rocky trails, mud pits, sand dunes, hills, and more! It also features a wide range of tire options for different types of terrain such as knobby tires for rocky trails or sand tires for sandy surfaces. This makes the Yamaha TTR125 an extremely versatile dirt bike that can handle almost any type of terrain you throw at it!
Yamaha TTR125 Suspension
Flexibility and Adjustability
The Yamaha TTR125 suspension system offers a level of flexibility and adjustability that few other bikes can match. The rear shock absorber features 6 preload settings, allowing you to customize the bike to your specific riding style. You can also adjust the compression damping on both the front and rear shocks, allowing you to tailor your ride to whatever terrain you’re tackling.
Durability
The TTR125 suspension system is built to last, even in tough conditions. The front forks are made from aluminum alloy and feature an oil-damped design that keeps them functioning well over time. The rear shock absorber is constructed from steel and features a large-diameter piston rod for increased durability and strength. The result is a bike that can handle anything you throw at it without compromising on performance or comfort.
Shock Absorption Technology
The TTR125 suspension system also features advanced shock absorption technology to ensure a smooth ride no matter where you go. The rear shock absorber uses nitrogen gas-filled shocks for ultra-smooth operation, while the front forks feature sealed cartridge dampers for increased responsiveness and control on any surface. These technologies combine to make sure your ride is as comfortable as possible no matter where you take it.
Yamaha TTR125 Brakes – comparing the model differences
The TTR125 has been around since 2000 and has had several brake model upgrades over the years. The four main models are the L (2000-2005), LE (2006-2010), LW (2011-2013) and LX (2014-current). Here’s a breakdown of each model so that you can better understand their differences.
TTR125 L Model
The L model of brakes were manufactured from 2000-2005 and are characterized by their single piston caliper design. This means that they have one piston which is responsible for clamping down on both pads at once. While this design may not be as efficient as others, it still gets the job done and provides plenty of stopping power when needed.
TTR125 LE Model
The LE model brakes were manufactured from 2006-2010 and are an upgrade from the L model. They feature a dual piston caliper design which allows for more efficient braking performance because each pad is clamped down by its own individual piston. This gives them improved control over speed, making them ideal for riders who need quick stops in a variety of conditions.
TTR125 LW Model

The LW model was manufactured from 2011-2013 and features an even more advanced brake system than its predecessors. It utilizes a three-piston caliper design which provides even more control over braking performance than the previous two models combined. These brakes also come with an adjustable lever which makes them perfect for riders who want to customize their riding experience to fit their specific needs.
TTR125 LX Model
Finally, we come to the LX model which was released in 2014 and is currently still in production. This model features a four-piston caliper design which provides superior stopping power compared to all other models on this list. Additionally, these brakes come with larger rotors than other models which helps them dissipate heat more efficiently while providing maximum stopping power when needed most.
Yamaha TTR125 Seat Height/Wheel Size
Seat Height
The seat height of this bike ranges from 29 inches (73 cm) to 31 inches (78 cm), depending on which model year you choose. This makes it particularly well-suited for smaller riders who might have trouble reaching the ground on other bikes. That said, taller riders should also consider the Yamaha TTR125 due to its adjustable suspension, which allows riders to customize their ride based on their weight and riding style.
Wheel Size
The standard wheel size of the Yamaha TTR125 is 19 in (48 cm). This wheel size provides plenty of stability without sacrificing maneuverability or speed. The larger wheels also provide better traction when navigating tight turns or slippery surfaces such as mud or gravel. The wide variety of aftermarket tire options available for this bike also means that riders can customize their wheel size according to their preferences or terrain conditions.
TTR125L vs. TTR125 – What’s the difference?
Honda TTR125L Features

The Honda TTR125L is designed for larger riders. With a bigger frame and higher seat height than its smaller counterpart, the Honda TTR125L provides an optimal riding experience for taller riders. The suspension has been upgraded from its predecessor, allowing for a smoother overall ride. It also features a larger fuel tank to extend your ride time and electric start to get you going quicker.
Honda TTR125 Features
The Honda TTR125 is designed for younger or smaller riders who aren’t quite ready to tackle the tougher terrain of off-roading with larger bikes yet. This model has all of the same great features as its bigger brother but with a slightly lower seat height, making it more comfortable for younger or shorter riders to control on rougher terrains. The engine is still powerful enough to handle all kinds of terrain though!
TTR125 Jetting problems and proper tuning
Understanding Jetting Basics
Jetting is a term used to describe the process of adjusting your engine’s air/fuel mixture. This is done by adjusting the size of the main and pilot jets in your bike’s carburetor. The main jet controls fuel flow during full-throttle acceleration while the pilot jet controls fuel flow at idle or low speeds. When these jets are properly adjusted, they help ensure that your engine runs as smoothly as possible. However, if they are too small or too large, it can cause serious performance issues with your bike.
Identifying Jetting Problems
If you experience any of the following symptoms with your TTR125, then it may be time to check your jetting:
– Poor acceleration
– Stalling or bogging down when accelerating from low RPMs
– Poor fuel economy
– Excessive smoke from exhaust pipe or carburetor vent tube
– Difficulty starting when hot or cold
Tuning Solutions for Common Issues
If you’ve identified one of these symptoms on your bike, then chances are that you need to adjust the size of either your main or pilot jets (or both). Start by increasing the size of your main jet if you’re having difficulty accelerating at higher speeds. If you’re experiencing stalling issues at lower RPMs, then try increasing the size of your pilot jet instead. Additionally, if you find that there is an excessive amount of smoke coming from either end of your motorbike, try adding more fuel to reduce it. Finally, if you’re having difficulty starting in either hot or cold weather conditions, then consider changing out both jets for larger ones to make sure there is enough fuel available in all conditions.
Model Year History/Generation Updates
First Generation (2000-2004)
The first generation of the TTR 125 was released in 2000 and featured a 124cc air-cooled four-stroke engine, a five-speed transmission, and a drum rear brake. This model ran on regular unleaded gasoline and had a fuel tank capacity of 1.6 gallons. It also had adjustable suspension, making it great for riders of all sizes and skill levels.
Second Generation (2005-2013)
The second generation of the TTR 125 was released in 2005 and featured an upgraded 124cc liquid-cooled four stroke engine with electronic fuel injection, as well as an improved six-speed transmission. This model also featured an electric start system, making it easier than ever to get rolling without having to kickstart your ride every time. Additionally, this version had an increased fuel tank capacity of 2 gallons and front disc brakes instead of just rear drums, making it great for off-road riding adventures.
Third Generation (2014-Present)
The latest version of the TTR125 was released in 2014 and features an even more powerful engine—a 124cc SOHC single cylinder four stroke—as well as an electric starter system with kickstart backup, revised suspension settings for improved comfort, new bodywork including side panels and radiators guards, plus updated graphics that give this bike a modern edge. In addition to all these improvements, this model also features larger wheels for better handling on rough terrain.
Yamaha TTR 125 Specs
Here’s a list of all the basic specs of the Yamaha TTR125:
- Top Speed: 45-50mph
- Seat Height: 30.5″ (125 small-wheel)/31.7″ (125L/LE large-wheel)
- Weight: 172 (dry)
- Price – $3,349 MSRP
- Engine: 124cc air-cooled 4-stroke
- Transmission: 5-speed
- Clutch: Wet clutch, Manual
- Fuel system: 20mm Mikuni carburetor
- Wheelbase: 50″
- Front wheel: 17″ (125)/19″ (125L/LE)
- Rear wheel: 14″ (125)/16″ (125L/LE)
- Ground Clearance: 10.4″ (125)/11.6″ (125L/LE)
- Fuel Capacity: 1.74 gallons (6.58 liters)
Common Issues with the Yamaha TTR 125
Starter Issues
One of the most common issues found on a Yamaha TTR 125 is starter problems. If your starter is not functioning properly, it can be incredibly frustrating trying to get your engine going. The good news is that this problem can usually be solved by checking the battery and making sure all electrical connections are tight and free of corrosion. If that doesn’t solve the issue, you may need to replace the starter assembly altogether.
Oil Leaks
Another common issue with the TTR 125 is oil leaks from various components such as the valve cover gasket or cylinder head gasket. In most cases, these leaks are caused by loose bolts or other parts that are not properly secured. To fix this issue, you will need to inspect each component and tighten any loose bolts or replace any worn-out parts as necessary.
Carburetor Problems
The carburetor on a Yamaha TTR125 is also prone to problems such as clogs or air leaks, which can lead to start up issues or decreased engine power while riding. To fix these types of issues, you will need to clean and adjust your carburetor as well as check for any damaged parts that may need replacing. Additionally, you should always make sure your fuel filter is clear so that no debris gets into your carburetor.
What’s a TTR 125 Worth?
New vs Used Prices
The Yamaha TTR 125 is one of the most popular motocross bikes on the market today. The price of a brand-new model will vary depending on where you buy it, but generally ranges from $3,000 to $4,000. Used models can range anywhere from $2,000 to over $3,000 depending on the condition and age of the bike. This means that there is still some discrepancy in what used models are selling for compared to their original price tag when they were first released.
What To Look For When Buying Used
When buying a used model, it’s important to inspect it thoroughly before purchase to make sure that everything is in order. Generally speaking, you want to look for any signs of rust or corrosion that could potentially affect its performance as well as any damage that may have been caused by previous owners or accidents. You may also want to check the tires and spark plugs to ensure they are in good condition. Additionally, if possible take the bike out for a test ride so you can get an idea of how well it runs and handles before investing your hard-earned money into something that isn’t up to par with your expectations.
Comparing the Yamaha TTR125 and Kawasaki KLX140
The TTR125 has a 125cc four-stroke engine that produces 10 horsepower at 7500 RPM. It also has an adjustable suspension system with front and rear shocks that can be adjusted to suit your riding style. The bike is surprisingly lightweight at just 250 pounds, making it easy to maneuver in tight spots or on uneven terrain.
The KLX140, on the other hand, has a slightly larger engine at 144cc that produces 11 horsepower at 7500 RPM. It also has an adjustable suspension system with front and rear shocks, as well as dual disc brakes for superior stopping power. This bike weighs in at 265 pounds—a bit heavier than its counterpart—but still light enough for comfortable riding over any type of terrain.
When it comes to features, both bikes are fairly similar but there are some key differences worth noting. The TTR125 has electric start while the KLX140 does not—a feature which can be especially useful when starting up in difficult weather conditions or in remote areas without easy access to a manual starter cord. The KLX140 also offers a 6-speed transmission while the TTR125 only offers 5 speeds—an important consideration if you plan on hitting higher speeds during your rides.
TTR125 vs XR100
Ah, the age-old question. Which bike reigns supreme? For many bikers, that debate comes down to Yamaha’s TTR125 and Honda’s XR100. Both have their own unique features and advantages, so it can be hard to decide which one is right for you. Let’s take a look at each one’s specs and performance capabilities and see how they stack up against each other.
The TTR125
The Yamaha TTR125 is an ideal entry-level off-road bike for younger riders or those new to the sport. This 4-stroke dirt bike has a 124 cc single cylinder engine with an electric start option and a manual 5 speed transmission. It produces 9 horsepower at 8500 rpm, making it relatively easy to handle for beginners. With its lightweight frame and low seat height, the TTR125 is great for smaller riders and maneuvering around tight turns. In terms of suspension, the front has an inverted telescopic fork while the rear has a single shock absorber with adjustable preload settings—both of which provide a smooth ride on any terrain.
The XR100
Honda’s XR100 is another great choice for beginner riders looking to get into dirt biking. It features a 99 cc single cylinder engine with an electric start option as well as a 4 speed manual transmission. It produces 8 horsepower at 8000 rpm, making it slightly less powerful than the TTR125 but still capable of handling some serious offroading adventures. The XR100 also has plenty of suspension—it has a 41mm front telescopic fork as well as a single shock absorber in the rear with adjustable preload settings—which makes it great for tackling rough terrain without sacrificing comfort or control.
Conclusion:
In conclusion, if you’re looking for a reliable and affordable motorcycle that provides plenty of power without being too intimidating then look no further than the Yamaha TTR125! With its long history of reliability and performance combined with its low price tag, this iconic motorcycle will provide years of enjoyment without breaking your budget! So what are you waiting for? Get out there and hit the trails with your new Yamaha TTR125!