Why is the Yamaha YZ125 One of the Top Choice for Dirt Bike Riders? | Moto-House MX

What makes the Yamaha YZ125 the top choice for Younger Dirt Bike Riders?

What makes the Yamaha YZ125 the top choice for Younger Dirt Bike Riders?

The Yamaha YZ125 is a legendary dirt bike that has been a favorite among young riders for decades. Its lightweight design, powerful engine, and exceptional handling make it the perfect choice for advancing riders looking to push their limits on the track. But what sets the YZ125 apart from other dirt bikes is its unmatched potential for modification. Riders can easily enhance the bike's performance and customize it to suit their individual riding style. Let's explore why the Yamaha YZ125 is the top choice for dirt bike riders to modify as their skills improve.

What are the essential modifications for the 2005-2023 Yamaha YZ125?

When it comes to modifying the 2005-2023 Yamaha YZ125, there are several key upgrades that riders should consider. These modifications will not only improve the bike's performance but also enhance its durability and reliability.

Here are the essential bolt-on modifications: This way, anyone can easily install the parts listed below. Keep in mind that you can always gain more performance if you choose to make further modifications, such as cylinder porting or cylinder head modifications.

1. Pro Circuit Works Pipe and Silencer

The first modification that every YZ125 rider should consider is installing a pipe and silencer from Pro Circuit. This aftermarket exhaust system is designed to maximize power, torque and over-rev, providing a noticeable boost in performance. With the Pro Circuit Works Pipe (PY05125) and R-304 Shorty Silencer (SY02125-RE), riders can unleash the full potential of their YZ125.

PRO CIRCUIT PY05125 2-Stroke Works Pipe | Moto-House MX      PRO CIRCUIT SY02125-RER-304 Shorty Silencer |  Moto-House MX
The works pipe is raw steel with hand-welded and pounded seams. Factory-level performance, but increased maintenance (cleaning and oiling) to keep it looking good

2. Moto Tassinari V-Force V4R Reed Valve

Another essential modification for the Yamaha YZ125 is adding a Moto Tassinari New VForce4 Reed Valve. This aftermarket upgrade improves throttle response and broadens the powerband, allowing riders to extract more power from the engine. With the VForce4 Reed Valve (V4R04), the YZ125 becomes even more responsive and delivers a smoother power delivery.

V-FORCE/MOTO TASSINARI  V4R04 4 Reed Valve | Moto-House Mx

3. Boyesen Supercooler Water Pump Cover & Impeller Kit

To ensure optimal cooling and prevent overheating, riders should consider improving the cooling system of their YZ125. The Boyesen Supercooler Water Pump Cover & Impeller Kit (WPK-31AB) is a popular choice among riders. This kit enhances coolant flow and reduces cavitation, resulting in improved cooling efficiency. With the Boyesen Supercooler Cover & Impeller Kit, riders can ride harder and longer without worrying about overheating.

BOYESEN WPK-31AB Supercooler Water Pump Covers and Impeller Kit | Moto-house MX

We also like to use Engine Ice (10850) Hi-Performance Coolant on all bikes

4. Increased Rear Sprocket Size

One simple modification that can significantly improve the YZ125's performance is increasing the rear sprocket size. By opting for a sprocket with one tooth larger, riders can achieve better acceleration and low-end power. This modification is particularly beneficial for riders who prefer tight and technical tracks.

5. Rekluse Racing Torqdrive Clutch Pack

The clutch is a critical component of any dirt bike, and upgrading it can make a world of difference in performance. The Rekluse Racing Torqdrive Clutch Pack is known for its durability and superior performance. This clutch pack provides smoother engagement, improved modulation, and increased torque capacity. You will feel the additional power you are putting to the ground. With the Rekluse Racing Torqdrive Clutch Pack (RMS-2807075), riders can confidently tackle any terrain with ease.

 REKLUSE RMS-2807075TorqDrive Clutch Pack | Moto-House MX

Rekluse Factory Formulated 2T Trans Oil / 4T Engine oil 

6. Twin Air Pre-Oiled Dual-Stage Air Filters

Lastly, to ensure the YZ125's engine breathes clean air and performs at its best, riders should invest in a high-quality air filter. The Twin Air Pre-Oiled Dual-Stage Air Filters (152213X) are designed specifically for the Yamaha YZ125 and provide excellent filtration and airflow. With these air filters, riders can maintain optimal engine performance and prolong the life of their YZ125.

TWIN AIR 152213XFactory Pre-Oiled Air Filter | Moto-House MX


By incorporating these essential modifications, riders can transform their Yamaha YZ125 into a high-performance machine that meets their specific needs and preferences. Whether it's for motocross racing or trail riding, the YZ125 is the ultimate choice for dirt bike young riders looking to take their skills to the next level.

Whether you're a competitive racer or a weekend warrior, these upgrades can help you bring out the full potential of your YZ125 and elevate your riding level.

If you are looking for additional performance parts or maintenance parts for a rebuild, Moto-House MX has everything you need.

We have been in business since 1992, so we know exactly what you need.

Back to blog

Leave a comment

Please note, comments need to be approved before they are published.